Riflescopeclub

𝐀𝐧𝐠𝐥𝐞𝐝 𝐨𝐫 𝐒𝐭𝐫𝐚𝐢𝐠𝐡𝐭 𝐒𝐩𝐨𝐭𝐭𝐢𝐧𝐠 𝐒𝐜𝐨𝐩𝐞, 𝐇𝐨𝐰 𝐭𝐨 𝐂𝐡𝐨𝐨𝐬𝐞?

Like and follow us if helpful!😍

𝐄𝐯𝐞𝐥𝐲𝐧: Hi Stephen, I was thinking about getting a new spotting scope. But I'm unsure about whether to go for an angled or straight scope. Can you help me out?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Hi Evelyn, sure thing. Before we start the discussion, I have one simple question for you: do you know what is a spotting scope and how it works?

𝐄𝐯𝐞𝐥𝐲𝐧: Yes, a spotting scope is a type of telescope that is used for terrestrial observation. It works by using a combination of lenses and prisms to magnify distant objects, and it is typically mounted on a tripod for stability and ease of use.

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Yes, spotting scopes are typically used for bird watching, hunting, and other outdoor activities where it is necessary to see objects that are far away. They feature high magnification(common ones are 12x-40x, 15x-40x, 20x-60x, 25-75x, etc.,), large objective lens diameter and built-in prism lens(Porro prism or Roof prism). Check out Picture 1 for reference.

𝐄𝐯𝐞𝐥𝐲𝐧: I see. And what’s the difference between an angled spotting scope and a straight spotting scope?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Well, in terms of appearance and inner construction, the key difference is the straight eyepiece or the angled eyepiece. An angled spotting scope has an angled eyepiece, which is set at a 45-degree angle to the scope body. A straight spotting scope, on the other hand, has a straight eyepiece that is in line with the scope body. Check out Picture 2 for reference.

𝐄𝐯𝐞𝐥𝐲𝐧: Got you! And how to choose between the angled spotting scope and the straight spotting scope?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: That depends on different usage and different situations. Let’s first talk about the pros and cons of the two spotting scopes, so that you’ll know how to choose properly.

𝐄𝐯𝐞𝐥𝐲𝐧: Yes, let’s start with straight spotting scopes. What are the pros and cons?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Well, if you are new to a spotting scope, and want to use a spotting scope to look at animals on the ground, then the straight spotting scope would be a better choice. Straight spotting scopes are also suitable for viewing in narrow spaces such as inside a vehicle. If you want to use it for prolonged observation, you can adjust the tripod height to be level with your eyes, which is a less fatiguing posture. However, it can be hard to use when looking up at an angle. And it requires a higher tripod height to achieve the same viewing height as an angled spotting scope.

𝐄𝐯𝐞𝐥𝐲𝐧: That's a good point. And what about angled spotting scope?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: The angled spotting scope is more comfortable to use when looking up at an angle, it allows for a lower tripod height, which can be more stable in windy conditions, or more comfortable to use from a seated position. The eyepiece can be adjusted for different heights, thus the angled spotting scopes can be easier to share with others. However, they can be more difficult to use for people who are new to spotting scopes, and can be a little difficult to glass at extreme downhill angles.

𝐄𝐯𝐞𝐥𝐲𝐧: I see. So the pros and cons of the two spotting scopes are as below, check it out.

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Yes, that’s correct. Either one that you choose, make sure the spotting scope is compatible with a tripod, which will help you stabilize the image and reduce shakiness.

𝐄𝐯𝐞𝐥𝐲𝐧: Got it. And what about different use scenarios? Are there any situations where one type of scope is better than the other?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: For birdwatching, an angled scope may be better if you're looking up into tall trees or at birds that are perched high up on a branch. The angled design can help you get a better view without having to strain your neck or back. However, if you're mostly viewing from a seated position, a straight scope might be more comfortable and easier to use. It all comes down to personal preference and the type of birdwatching you plan to do.

𝐄𝐯𝐞𝐥𝐲𝐧: Thanks for all the info, Stephen. I think I have a better idea of what to look for now.

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: No problem, happy to help. Let me know if you have any more questions or if you need any more advice!

𝐇𝐨𝐰 𝐭𝐨 𝐜𝐡𝐨𝐨𝐬𝐞 𝐝𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭 𝐫𝐞𝐭𝐢𝐜𝐥𝐞𝐬?

Like and follow us if helpful😍

𝐄𝐯𝐞𝐥𝐲𝐧: Hi Stephen, I'm doing some research on choosing the right scope reticle for my rifle. Do you have any experience with that?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Yes, I've been shooting for years and have tried different types of reticles. What do you want to know?

𝐄𝐯𝐞𝐥𝐲𝐧: Well, I'm not sure which one to choose. There are so many types and each seems to have its own benefits and drawbacks.

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: That's true. The first thing you need to consider is the type of shooting you'll be doing. Different types of reticles are better suited for different types of shooting scenarios.

𝐄𝐯𝐞𝐥𝐲𝐧: I see. What types of reticles would you recommend for hunting?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: For hunting, there are some simple reticles like crosshair reticles, center dot reticles, duplex reticles and German #4 reticles. They are mainly simple crosshair designs, some with thicker lines at the edges, and a central aiming point. The thicker lines at the edges can draw your eyes to the center of your target, especially in low light or busy background, thus helping you quickly acquire your target.

𝐄𝐯𝐞𝐥𝐲𝐧: Okay, but what about BDC reticles? I also see them in hunting scopes.

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: BDC (Bullet Drop Compensation) reticles are another popular choice for hunters and tactical shooters. They are designed to compensate for bullet drop at different ranges. BDC reticles are typically calibrated to a specific caliber and bullet weight, so it's important to match the reticle to the ammunition being used. BDC reticles feature marks or dots that correspond to specific ranges, allowing shooters to adjust their aim accordingly. These reticles are particularly useful when shooting at targets at varying distances, making them popular among hunters and long-range shooters.

𝐄𝐯𝐞𝐥𝐲𝐧: Got you. So for tactical shooting BDC reticle would be a good choice, what else?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: For tactical shooting, Mil-Dot reticles are one of the most popular reticles. The Mil-Dot reticle is a common choice for long-range shooting. It features evenly-spaced dots along the crosshairs, which can be used to estimate the range of your target. The dots are spaced one milliradian (or mil) apart, which corresponds to 3.6 inches at 100 yards. This makes it easy to calculate holdover and windage adjustments, as well as to estimate range.

𝐄𝐯𝐞𝐥𝐲𝐧: Okay, I'll keep that in mind. What about MOA reticles?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: The MOA reticle uses Minute of Angle (MOA) measurements, which correspond to 1.047 inches at 100 yards. This reticle is often preferred by hunters and precision shooters, as it allows for more precise adjustments and easier target acquisition. MOA reticles are also more intuitive for those who are already familiar with minute-of-angle measurements.

𝐄𝐯𝐞𝐥𝐲𝐧: I see. Between the Mil-Dot reticle and MOA reticle, which one would you recommend?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: The choice between Mil-Dot reticles and MOA reticles comes down to personal preference and intended use. If you are looking for a reticle that allows for easy range estimation and holdover adjustments, the Mil-Dot reticle may be your best bet. If you prioritize precision and ease of use, the MOA reticle may be a better choice. MIL or MRAD and CM are more suitable for those using the metric measurement system, while MOA is more suitable for those using the imperial measurement system.

𝐄𝐯𝐞𝐥𝐲𝐧: Okay. But what about illuminated reticles? Are they worth the extra cost?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Illuminated reticles are designed to provide better visibility in low light conditions such as dawn, dusk, or nighttime. However, they can also be used during the daytime, especially at low magnification settings. This is especially important for hunters or shooters who need to quickly adapt to changing conditions. If the reticle is fiber-illuminated, then it can even be seen in very bright conditions. To some extent, illuminated reticles can be used as a substitute for red dot sights.

𝐄𝐯𝐞𝐥𝐲𝐧: Got ya. And what about the FFP reticle and the SFP reticle?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: To choose between the two reticles, let’s first talk about their main features. The FFP reticle is placed at the front of the magnification lens, allowing for the same holdover and windage marks on the reticle at any magnification level. This makes it easier to estimate range and compensate for bullet drops and wind drift. However, the reticle can become too small or too large at extreme magnifications. Scopes with the FFP reticle are ideal for competitive shooting and hunting, where targets may be encountered at various distances and where speed and accuracy are important.

𝐄𝐯𝐞𝐥𝐲𝐧: And what about the SFP reticle? What are the main features?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: The SFP reticle has a fixed size, making it clear and visible at any magnification level, but requires a specific magnification level(usually the highest) for accurate holdover and windage marks. They are advantageous for bench rest shooters and those shooting fixed distances.

𝐄𝐯𝐞𝐥𝐲𝐧: I see. So how to choose between the FFP and the SFP reticle?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Scopes with the FFP reticle are useful in shooting scenarios where targets are at various distances and where speed and accuracy are important, such as in PRL(Precision Rifle League) and NRL(National Rifle League) shooting, and 3 Gun Events. They allow the shooter to vary the magnification on the fly and engage targets utilizing holdover at any magnification and distance. Scopes with the SFP reticle, however, are advantageous for bench rest shooting or any situation where you will routinely shoot at a fixed distance.

𝐄𝐯𝐞𝐥𝐲𝐧: Now I know that when choosing different reticles, one needs to mainly consider different shooting scenarios, MIL or MOA, FFP or SFP and illuminated or non-illuminated, and choose one that best fits your shooting needs. Am I right?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: That’s right. Check out the chart below for reference.

𝐄𝐯𝐞𝐥𝐲𝐧: Yes, I understand that. Thanks for your help, Stephen.

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: No problem, Evelyn. Next time I will explain in detail about different types of reticles and their usage.

𝐡𝐨𝐰 𝐭𝐨 𝐜𝐡𝐨𝐨𝐬𝐞 𝐚𝐦𝐨𝐧𝐠 𝐝𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭 𝐩𝐚𝐭𝐭𝐞𝐫𝐧𝐬 𝐨𝐟 𝐝𝐨𝐭 𝐫𝐞𝐭𝐢𝐜𝐥𝐞𝐬?

Like and follow us if helpful🤩

𝐄𝐯𝐞𝐥𝐲𝐧: Stephen, when choosing reflex sights, I noticed that some models offer multi-reticles. What are the most common types of reflex sight reticles and what shooting scenarios do they fit?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Good question! There are many different reticle patterns on the market now, but the most common ones for reflex sights are standard dot, crosshair circle and crosshair circle with a dot. (𝑷𝒊𝒄𝒕𝒖𝒓𝒆 𝟏)

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Before we get started on the 3 patterns of reflex sight reticles, do you know how does a reflex sight work?

𝐄𝐯𝐞𝐥𝐲𝐧: Yes, the reflex sight uses a clear lens and a LED reflector to display the red dot.

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Right. There’s a tiny LED point behind the lens that generates a colored dot of light, the light is then reflected off the back of the lens toward the shooter’s eye. Check out 𝑷𝒊𝒄𝒕𝒖𝒓𝒆 𝟐 for reference.

𝐄𝐯𝐞𝐥𝐲𝐧: I see, now I know how a reflex sight works, let’s get back to the reticles of the reflex sight.

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Yes, when it comes to reflex sight reticles, we need to first consider the dot size and the dot pattern, choose one that will best fit your uses.

𝐄𝐯𝐞𝐥𝐲𝐧: Talking about the dot size, I noticed that the dot reticle is usually measured in MOA right?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Yes, the size of the dot is measured in MOAs. 1 MOA spreads about 1’’ at 100 yards, 2’’ at 200 yards and so on. So if the dot size is 3 MOA, that means that the dot covers a 3’’ area on a target 100 yards away. Check out 𝑷𝒊𝒄𝒕𝒖𝒓𝒆 𝟑 for reference.

𝐄𝐯𝐞𝐥𝐲𝐧: I see. What size is good for my dot reticle then?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Depends on how far away your target is. If your target is within 100 yards, then the dot size should be between 3 and 5 MOA. So that you can see your target easily and acquire your target fast without getting the dot blocking your line of sight.

𝐄𝐯𝐞𝐥𝐲𝐧: Got you! What about the dot pattern? You mentioned the 3 most common dot patterns, what shooting scenarios do they fit for?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Yes, let’s first talk about the dot reticle. The dot reticle is the simplest and most common type of reticle used in reflex sights. It consists of a single dot in the center of the sight window, which acts as the aiming point. The size of the dot can vary depending on the sight, but typically ranges from 1 to 5 MOA. A smaller dot size provides greater precision, enabling the shooter to make accurate shots at longer distances. The dot reticle is ideal for shooting at small targets or hunting small games, where precision is key.

𝐄𝐯𝐞𝐥𝐲𝐧: Understood, so the dot reticle provides a clear and precise aiming point and does not obstruct your target, fit shooting at small targets or hunting small game, right? (𝑷𝒊𝒄𝒕𝒖𝒓𝒆 𝟒)

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Yep, now let’s talk about crosshair circle reticle. Crosshair circle reticle is a popular choice due to its versatility and ease of use.

𝐄𝐯𝐞𝐥𝐲𝐧: Why is it versatile and easy to use?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Compare to the dot reticle, the crosshair circle reticle provides a larger aiming point for quick target acquisition, but it may obstruct the view of the target, especially when shooting at long distances. The diameter of the crosshair reticle usually ranges from 30 to 50 MOA. The crosshair circle allows for easier tracking of moving targets and is ideal for close-quarters shooting scenarios.

𝐄𝐯𝐞𝐥𝐲𝐧: I see. So the crosshair circle reticle provides quick target acquisition due to its circular design and is more suitable for close-quarters shooting scenarios. (𝑷𝒊𝒄𝒕𝒖𝒓𝒆 𝟓)

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Yes, now let’s move on to the crosshair circle with a dot reticle. This type of reticle consists of a circular outer ring with a small dot in the center, it combines the advantages of both dot reticle and crosshair circle reticle. The large circle makes it easy to track moving targets, while the dot provides precise aiming. This reticle is suitable for close-range engagements and medium-range shooting.

𝐄𝐯𝐞𝐥𝐲𝐧: Can this type of reticle be used for long-range shooting?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: This reticle is not suitable for long-range shooting as the circle may cover too much of the target at longer distances.

𝐄𝐯𝐞𝐥𝐲𝐧: I see. So this type of reticle is good for moving targets acquisition and speed and precise aiming at close to medium range right? (𝑷𝒊𝒄𝒕𝒖𝒓𝒆 𝟔)

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Yes. To sum up, if you focus on precision, then choose the dot reticle; if you want to acquire moving targets in close-quarters shooting scenarios, then choose the crosshair circle reticle; If you want to track moving targets as well as precise aiming, then choose the crosshair reticle with a dot. Choose wisely based on your shooting needs.

𝐄𝐯𝐞𝐥𝐲𝐧: Got it. I have learned a lot today! Thank you, Stephen!
𝐒𝐭𝐞𝐩𝐡𝐞𝐧: You are welcome!

𝐌𝐈𝐋 𝐨𝐫 𝐌𝐎𝐀? 𝐇𝐨𝐰 𝐭𝐨 𝐮𝐬𝐞 𝐭𝐡𝐞𝐦?

Like and follow us if helpful🤩

𝐄𝐯𝐞𝐥𝐲𝐧: Stephen, when choosing rifle scopes, I noticed that there are mainly two measurement systems for elevation and windage adjustment: MIL and MOA, can you explain to me what are the differences between the two systems, and how to use them?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Sure. First, do you know what are MIL and MOA?

𝐄𝐯𝐞𝐥𝐲𝐧: I know that MIL stands for Milliradian, and MOA stands for Minute of Angle.

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Yes, they are both measurements of an angel within a circle, but they differ in size. Now let me explain in detail, I will start with MOA as it is the most popular measurement system among shooters in the U.S.

𝐄𝐯𝐞𝐥𝐲𝐧: MOA is 1⁄60 of one degree, right?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Yes, like one hour is divided into 60 minutes, 1 degree is divided into 60 minutes of angle, and 1 minute of angle is 1 MOA. Check out 𝐏𝐢𝐜𝐭𝐮𝐫𝐞 𝟏 for reference.

𝐄𝐯𝐞𝐥𝐲𝐧: I see, but how much does an MOA measure regarding distance?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: If you are using yards, then 1 MOA approximately equals 1 inch(1.047”) at 100 yards, 2 inches at 200 yards and so on; If you are using meters, then 1 MOA approximately equals 2.9cm at 100m, 5.8cm at 200m, and so on. Check out 𝐏𝐢𝐜𝐭𝐮𝐫𝐞 𝟐 for reference.

𝐄𝐯𝐞𝐥𝐲𝐧: I have a question. When using MOA scopes, I noticed “1 click =1/4 MOA @ 100 yds” on the turret cap. What does it mean?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: 1/4 MOA is 1/4th of an inch at 100 yards. So if the bullet impact is an inch high at 100 yards, you need to adjust 4 clicks down to correct it.

𝐄𝐯𝐞𝐥𝐲𝐧: I see. So if the bullet drops 4 inches at 200 yards, it means that the shooter needs to adjust 2 MOA, 8 clicks up to correct it right?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Yes, when you know your bullet drop, you can make appropriate adjustments to ensure your target is hit next time. Take the upper example, at 200 yards, 1 MOA equals 2 inches, so the bullet drops 4 inches means that it drops 2 MOA, so we need 2 MOA adjustments.

𝐄𝐯𝐞𝐥𝐲𝐧: So the MOA formula for adjustment would be in 𝐏𝐢𝐜𝐭𝐮𝐫𝐞 𝟑

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: That’s correct! Now let’s move on to MIL adjustment.

𝐄𝐯𝐞𝐥𝐲𝐧: Yes, MIL means Milliradian, but what is Milliradian?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: MIL or MRAD stands for Milliradian and represents 1/1000 of a radian, it is mostly used in military and tactical precision riflescopes. Do you know what is a radian?

𝐄𝐯𝐞𝐥𝐲𝐧: I’m not sure, can you explain to me?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: So a radian is a unit of angle, equal to an angle at the center of a circle whose arc is equal in length to the radius. A radian contains 1000 MILs, so 1MIL equals 1/1000 radians. At 1 radian, the length equals the circle's radius(your shooting distance), so at 1 MIL, the length equals to 1/1000 of your shooting distance. Please check out 𝐏𝐢𝐜𝐭𝐮𝐫𝐞 𝟒 for reference.

𝐄𝐯𝐞𝐥𝐲𝐧: Gotcha! How much is 1 MIL at a certain distance?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: As I just mentioned, 1 MIL equals 1/1000 of any shooting distance. So 1 MIL is 1 meter at 1000 meters and 1 yard(36”) at 1000 yards. Then 1 MIL is approximately 10cm at 100m, 20cm at 200m and so on. Likewise, 1MIL is approximately 3.6 inches at 100 yards, 7.2 inches at 200 yards and so on. Check out 𝐏𝐢𝐜𝐭𝐮𝐫𝐞 𝟓 for reference.

𝐄𝐯𝐞𝐥𝐲𝐧: I see. So if the scope’s click value is 1/10MIL, that means if your POI(point of impact) is 10cm higher than your POA(point of aim) at 100m, you need to adjust down by 10 clicks, right?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: That’s correct. If you want to measure distance or target size with MIL dots, here’s the formula in 𝐏𝐢𝐜𝐭𝐮𝐫𝐞 𝟔.

𝐄𝐯𝐞𝐥𝐲𝐧: Got it! So which measurement system is better? MOA or MIL?

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: It’s more of a habitual thing. If you are used to the imperial system, then you might find MOA more suitable to you; If you are comfortable with the metric system, then you might choose MIL over MOA.

𝐄𝐯𝐞𝐥𝐲𝐧: I see, I have learned a lot today, thank you!

𝑳𝒊𝒌𝒆 𝒂𝒏𝒅 𝒇𝒐𝒍𝒍𝒐𝒘 𝒖𝒔 𝒊𝒇 𝒉𝒆𝒍𝒑𝒇𝒖𝒍!

𝟏’’(𝟐𝟓.𝟒𝐦𝐦) 𝐯𝐬 𝟑𝟎𝐦𝐦 𝐯𝐬 𝟑𝟒𝐦𝐦 𝐬𝐜𝐨𝐩𝐞 𝐭𝐮𝐛𝐞 𝐬𝐢𝐳𝐞, 𝐡𝐨𝐰 𝐭𝐨 𝐜𝐡𝐨𝐨𝐬𝐞?

Like and follow us if helpful!🤩

𝐄𝐯𝐞𝐥𝐲𝐧: Stephen, I noticed that scope manufacturers usually provide different tube sizes for scopes, does scope tube size matter? How to choose among different tube sizes?
𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Good question! First of all, do you know what the scope tube size is and how it is measured?
𝐄𝐯𝐞𝐥𝐲𝐧: Yes, the scope tube size is the diameter of the main tube, so if the main tube’s diameter is 30mm, then the scope tube size is 30mm. (picture 1)
𝐒𝐭𝐞𝐩𝐡𝐞𝐧: That’s correct. There are three major scope tube sizes on the market: 1’’(25.4mm), 30mm and 34mm.
𝐄𝐯𝐞𝐥𝐲𝐧: If the scope has a larger tube size, does that mean its light transmission rate is higher?
𝐒𝐭𝐞𝐩𝐡𝐞𝐧: That’s a common misconception. Larger main tubes do let in more light, but the changes are minor. What really affects light transmission are the quality of optical glasses, the coatings of the scope lens, the size of the objective lenses, and the inside optical system.
𝐄𝐯𝐞𝐥𝐲𝐧: I see, so what factors do larger main tubes affect?
𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Larger tube size means larger space to fit all of the internal components, which results in greater internal adjustments, making the scope more suitable for long-range shooting and target shooting. Check out picture 2 for reference.
𝐄𝐯𝐞𝐥𝐲𝐧: Okay, does that mean the larger the tube size is, the better the scope performs?
𝐒𝐭𝐞𝐩𝐡𝐞𝐧: No, the tube size is not the only thing to consider when choosing riflescopes, different shooters have their own preferences based on their shooting scenarios and habits. Let's first take a deep dive into the pros and cons of the three major scope tube sizes and the corresponding shooting scenarios, and then you will see.
𝐄𝐯𝐞𝐥𝐲𝐧: Yes! I’m all ears!
𝐒𝐭𝐞𝐩𝐡𝐞𝐧: First, of the three major scope tube sizes, the 1’’(25.4mm) tube size is very common due to the lower production costs and the lighter weight of the scope. However, the adjustment range is relatively smaller, long-distance shooters may max out the range and need to use a scope base to add more adjustment range. If you are shooting close to medium distances, for example, from 50 to 300 yards, and you care more about the compact size and weight of the scope rather than adjustment, then 1’’(25.4mm) scopes are a good choice.

🍀𝐄𝐯𝐞𝐥𝐲𝐧: So the pros and cons of 1’’(25.4mm) tube size are as follows:
𝐏𝐫𝐨𝐬:
✔️Very common scope tube size
✔️Lower production costs
✔️Lighter weight of the scope
𝐂𝐨𝐧𝐬:
✖️Limited internal space leads to a smaller adjustment range

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Correct! Now let’s move on to the 30mm tube size. The 30mm scope tube size is gaining growing popularity nowadays. Compared with the 1’’(25.4mm) scope main tube size, it has a thicker outer body, which means that the 30mm scopes are more robust and durable. The larger tube size also means more inner adjustment range as there’s more space for inner lens assembly, making it fit longer ranges than 1’’(25.4mm) scopes. The downside is that 30mm scopes are relatively heavier and larger compared to 1’’(25.4mm) scopes.

🍀𝐄𝐯𝐞𝐥𝐲𝐧: Got it, so the pros and cons of 30mm tube size are as follows:
𝐏𝐫𝐨𝐬:
✔️Scopes are more robust and durable
✔️More inner adjustment range
✔️Better for longer ranges than 1’’ scopes
𝐂𝐨𝐧𝐬:
✖️Scopes are relatively heavier and larger compared to 1’’(25.4mm) ones

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Good! Now let’s talk about the 34mm tube size. First, the greater diameter means oversized elevation and windage turrets, so generally speaking, the adjustment can be produced more precisely; second, 34mm tube scopes have even thicker outer bodies, with great durability; besides, a larger scope tube can accommodate a larger objective lens and more space for internal adjustment, which allows larger magnification lens and better movement of the reticle, so the accuracy and precision of the scope are increased. Shooters can also find it easier to compensate bullet drop as 34mm main tube scopes have more room for elevation adjustment. However, the 34mm tube scopes are usually heavier, which could be a downside in shooting, and the price is relatively higher.

🍀𝐄𝐯𝐞𝐥𝐲𝐧: I see, so the pros and cons of 34mm tube size are as follows:
𝐏𝐫𝐨𝐬:
✔️Adjustments can be more precise
✔️Great durability
✔️Larger objective lens and more space for internal adjustment, better bullet drop compensation
✔️Better accuracy and precision of the scope
𝐂𝐨𝐧𝐬:
✖️Heavier weight of the scope
✖️More expensive

𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Correct, are you clear now about how to choose among different scope tube sizes?
𝐄𝐯𝐞𝐥𝐲𝐧: Yes, that depends on what factors shooters value more and what shooting scenarios they are in. Scope tube size is only one of many factors to consider, and the main change it brings is the internal adjustment range. A 1’’(25.4mm) scope tube is enough if shooters are not shooting at long distances; for long-range shooting, either a 30mm or 34mm scope tube is good. If shooters want a nice scope with great precision and accuracy, then go for scopes with larger main tube sizes like 34mm ones.
𝐒𝐭𝐞𝐩𝐡𝐞𝐧: Yes, you’ve learned a lot today! In general, choose a scope that best fits all your needs, the scope tube size is just one indicator.
𝐄𝐯𝐞𝐥𝐲𝐧: Thanks!

Like and follow us if helpful!🤩

Red or Green Dot Sight? How to Choose?

Like and follow us if helpful

Evelyn: Stephen, have you noticed that there is a growing popularity of green dot sights now, I’m curious, compared to red dot sight, is green dot sight better?
Stephen: Well, there is no specific answer to which one is better because both are useful for different applications, shooters should choose wisely based on their shooting scenarios and environment.

■ 1, Different shooting scenarios
Evelyn: I see, so in different shooting scenarios and environments, shooters choose different dot sights?
Stephen: Yes, for example, if you are shooting in the woods or green background, would you choose red dot sight or green dot sight?
Evelyn: I think I will go for the red dot sight as the environment would wash out the green dot.
Stephen: Exactly, a red dot sight has a richer color acquisition than a green sight. As you can see in Picture 1, when you use a red dot sight on a green background, you will see it much faster; however, the green dot will blend into the background and it's not that easy to shoot the target quickly.
Evelyn: I see, so a red dot would be more applicable for shooting requiring a green background, such as hunting.
Stephen: Yes.

■ 2, Shooters with astigmatism
Evelyn: I have a question. When I use red dot sights, the dot I see can get blurry as I have astigmatism(Picture 2), what about green dot sights? Does this happen to green dots too?
Stephen: Good question, a lot of people suffer from astigmatism issues, so the phenomenon you mentioned is common in red dot sights as the red color can put extra pressure on your eyes. However, the green dot is great through astigmatism because green responds better to the human eyes.
Evelyn: I see, so for people with astigmatism, they better choose green dot sight for a clearer visual image?
Stephen: Yes, the red rays of light have a very high wavelength and a small frequency, so the red dot can strike your eye fast and accelerate your speed of target acquisition, but it can strain your eyes if targeting for a long period of time; the green color is less irritating to the human eye, allowing the human eye to see more clearly.

■ 3, Shooting with night vision devices
Evelyn: What about night vision? Can they both be used in night vision shooting?
Stephen: For night vision, I would say a red dot is more suitable. Check out picture 3, red has a sharp contrast with dark colors like blue or black, at night or in a low-light environment the red dot is very visible. However, in a bright environment, the visibility of red dot would be greatly reduced, so the red dot would be too weak to acquire targets.
Evelyn: And why is the green dot not recommended for night vision?
Stephen: The green dot can work with night vision sometimes, but it depends on different devices. Sometimes if your night vision device has ANVIS (Aviator's Night Vision Imaging System) lenses, then the green dot wouldn’t show up at all; but sometimes it can work very well with other night vision devices. So to combine the green dot with night vision, you have to talk to the manufacturer first and find out if it works.

■ 4, Conclusion
Evelyn: I see, wow, I’ve learned a lot today!
Stephen: Are you clear now? What did you learn about the red dot?
Evelyn: Yes, so the pros of red dot sights are: they can meet most shooting scenarios, good for fast target acquisition and low light shooting, they are also more suitable for night vision; the cons are: in bright light, it is difficult for the red dot to acquire targets, and they are not recommended for shooters with astigmatism. (Picture 4)

Stephen: Yes, and what did you learn about the green dot?
Evelyn: The green dot is easier to see in daylight and is astigmatism-friendly, but it is not recommended for the green-background environment and night vision devices. (Picture 5)

Stephen: Excellent! Generally speaking, red dot sight and green dot sight each have their advantages. When choosing, we need to take into account your needs, shooting scenarios, habits and preferences.
Evelyn: I got it! Thanks for sharing, Stephen!
Stephen: You are welcome!

Like and follow us if helpful!

Why choose a direct bulb red dot sight?

Like and follow us if helpful

Evelyn: When shopping for red dot sights, I sometimes see the word ‘Direct Bulb’ in the product parameters. What is the direct bulb?
Stephen: ‘Direct bulb’ was first introduced by ‘Vector Optics’. It is indeed called RCLED（Resonant-Cavity Light-Emitting Diode） which is a light-emitting diode using compound semiconductors. Surface-emitting RCLEDs are excellent in terms of coupling efficiency, the speed of response, temperature characteristics and durability. RCLEDs are applied to control sensors of cars, car audios, automatic navigation systems, military vehicles, combat planes, airplanes and ships.
Evelyn: What is direct bulb red dot sight?
Stephen: According to the light source, reflect sight can be divided into ‘direct bulb red dot’ and diaphragm red dot. ‘Diaphragm’ is the traditional red dot light source technology, while the direct bulb technology is more advanced and modern.
Both of them have a built-in light source in the red dot, the built-in light source of the direct red dot is a mini light resource, by projecting the light source directly on the lens to form the red dot, the size of the light bulb determines the size of the red dot on the lens.（Figure 1）

In contrast, the built-in light source of the diaphragm type red dot is large and scattered, and the size of the red dot is controlled by covering the light source with a film with a tiny hole, which we call the diaphragm. The larger the hole in the diaphragm, the larger the size of the red dot, and vice versa, the smaller. （Figure 1）
Evelyn: What is the advantage of direct bulb red dot sight？
Stephen: In short the advantages of direct bulb can be summarized in the below three points.
■Better stability
■Longer service life
■Less dispersion & More rounded dot
Evelyn: Can we talk about them one by one?
Stephen: No problem!

■1.Better stability
Since the light source of the diaphragm red dot is diffuse, the brightness of the red dot projected onto the lens through the small hole is various on different position of the lens and usually strongest in the center of the lens, and when aiming at the target through the edge of the lens, it becomes dim or even disappears. In general, the red dot brightness is altered by its position. (Figure 2)

Evelyn: How about direct bulb red dot sight?
Stephen: Direct bulb red dot sight can maintain its brightness regardless of the position on the lens, minimizing the limitation of the use of the red dot. It’s stability is a big advantage in rapid shooting, once the target is in sight you can aim at the target with any position on the lens instead of having to use the center of the lens.
On the other hand, when the lens is partially broken or covered by mud stains, you can use the intact part to aim; in extreme weather such as snow and sand, the red dot always remains strong, stable and bright to ensure the shooting experience.(Figure 3)

■ 2.Longer service life
Evelyn : Why direct bulb red dot sight can run a longer time?
Stephen: The runtime of the red dot is mainly determined by the chip, the light source and the built-in program. Diaphragm red dot sight’s dot size is controlled by the hole size. It actually emits much more light than we can see but is obscured by the diaphragm which consumes more battery power.
The direct bulb red dot’s light source is low battery consuming which extends the battery life. Some direct light source red dot operation time can reach 50,000 hours in the weakest visible level.

■ 3.Less dispersion & More rounded dot
Evelyn: How can direct bulb red sight offer less dispersion and more rounded dot?
Stephen: The tiny hole in the diaphragm is formed by chemical corrosion, the edges of the hole are not perfectly round but irregular. When we look through the naked eye we will find some scattering at the edge of the red dot, while the direct bulb red dot sight project the dot directly on the lens can avoid this problem. In addition, the red dot presented through the corroded diaphragm has a certain defect rate and will form irregular dots as shown in Figure 4. On the other hand, Direct bulb red dot sight‘s dot can be made smaller and rounder with fewer defects.

Evelyn: I got it. Thank you for your sharing, Stephen!
Stephen: You are welcome.

Like and follow us if helpful

#