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Posted: 9/1/2024 11:17:48 AM EST
My first foray into an AR with a high-powered optic, and I'm confused about where to mount the scope. I initially had it mounted here:
 That didn't feel natural at all, because I usually use a nose-to-charging handle approach for a consistent cheek weld. With the scope mounted that far back, it seems like I couldn't find anything to "anchor" to to find a consistent shooting position. This morning, I moved the scope forward 4 T-slots to get close to a nose-to-charging handle position (pics to come). When I look at the pictures tacked at the top of the page, it seems like there's no consensus on where people mount their scopes. Am I wasting my time with what I'm doing? |
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Posted: 9/1/2024 11:29:13 AM EST
[Last Edit: mudholestomper]
[#1]
@Zhukov
What I’ve always read is to close your eyes, mount the gun wherever it’s comfortable and doesn’t cause muscle tension or strain, then open them and see if the scope is working for you. Adjust accordingly. Basically, move the scope to the best spot, not your head to the scope. Ryan Cleckner (and others) have a ton of videos on YouTube and Snipers Hide that walk you through it. He’s got an entire, professionally produced video series on this channel:  How to Mount a Rifle Scope | Long-Range Rifle Shooting with Ryan Cleckner Also, this is a great book:  Attached File |
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MI, USA
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Posted: 9/1/2024 12:33:53 PM EST
[#2]
Mount it however you need in order to be able to quickly and comfortably get on target (and stay there).
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Posted: 9/1/2024 3:05:27 PM EST
[#3]
Quote HistoryOriginally Posted By mudholestomper: @Zhukov What I've always read is to close your eyes, mount the gun wherever it's comfortable and doesn't cause muscle tension or strain, then open them and see if the scope is working for you. Adjust accordingly. Basically, move the scope to the best spot, not your head to the scope. Ryan Cleckner (and others) have a ton of videos on YouTube and Snipers Hide that walk you through it. He's got an entire, professionally produced video series on this channel:  https://www.youtube.com/watch?v=COoXVpGfXQEAlso, this is a great book: https://www.ar15.com/media/mediaFiles/511664/IMG_1534_jpeg-3310562.JPG I get that for a hunting rifle, but for an AR it seems like that won't quite work as the stock is usually just flat with no anchor points. When you put your head on your rifle stock that has wells, you tend to find your anchor spot kind of naturally. On an AR, I always felt comfortable with the nose against the charging handle but that isn't what other people are doing apparently. |
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Posted: 9/1/2024 3:50:42 PM EST
[Last Edit: HighpowerRifleBrony]
[#4]
Assuming bipod supported prone only.
Stock length about A2. Square up within 30 degrees to rifle. Lay chin on comb, then let the face slide down until eye is in sight line, dragging the cheek up. Cheek normally ends up more on the riser than tube. Adjust scope for relief. I favor the scope being more rearward/eye at front of the box in case an offhand shot is needed. The "anchor" is your natural lay and sight line. Some cant may help. I tend to bring my firing side knee forward a little and cant CCW ~5 degrees. |
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AZ, USA
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Posted: 9/1/2024 3:53:11 PM EST
[#5]
Mount it the Navy way. Flip it around 180 and having the objective closest to the eye.. It makes all of your shots longshots, and it looks really cool.
Just kidding. I would mount it as far forward as needed for natural, non strained proper eye relief, which creates a good site picture / scope shadow. You can always add a cheek riser if needed. Just don’t bridge the HG obviously. |
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Posted: 9/2/2024 11:43:37 AM EST
[#6]
You aren’t far off from where my scopes end up in that picture. Maybe one index off. Where ever it is most comfortable for you for the positions you shoot the most.
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Posted: 9/2/2024 11:51:12 AM EST
[#7]
Prone, bench, or off hand?
I usually shoot my scoped ar at steel from prone. I mounted my scope to be comfortable from prone. It is not bad from off hand or standing though. |
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Posted: 9/2/2024 11:53:51 AM EST
[#8]
Most scopes on ARs tend to have the eye piece close to the charging handle.
I zero my DMR/Precision ARs using the modified prone position which will give you a good all around zero for various positions. Make sure you can still throw it up to acquire a target quickly. I use a small square of velcro on the cheekpiece as my reference for position. |
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Posted: 9/2/2024 12:22:05 PM EST
[#9]
Quote HistoryOriginally Posted By Skg_Mre_Lght: Most scopes on ARs tend to have the eye piece close to the charging handle. I zero my DMR/Precision ARs using the modified prone position which will give you a good all around zero for various positions. Make sure you can still throw it up to acquire a target quickly. I use a small square of velcro on the cheekpiece as my reference for position. Good idea! I was starting to think something along those lines myself. |
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OR, USA
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Posted: 9/2/2024 11:35:21 PM EST
[#10]
I adjust the stock so I puts my head front to back where I want it. I index nose off charging handle. I mark how far back my eye is on the stock. I use a flashlight shined in the objective to find the distance of the focal point of the light coming out of the eye piece. I line that up with my eye mark on the stock. I do position shooting so I mark eye location for all three positions. I set the light focal point in the center.
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CA, USA
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Posted: 9/6/2024 2:22:37 PM EST
[#11]
Quote HistoryOriginally Posted By Skg_Mre_Lght: Most scopes on ARs tend to have the eye piece close to the charging handle. I zero my DMR/Precision ARs using the modified prone position which will give you a good all around zero for various positions. Make sure you can still throw it up to acquire a target quickly. I use a small square of velcro on the cheekpiece as my reference for position. What is the "modified" prone position? |
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Posted: 9/6/2024 2:52:12 PM EST
[#12]
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FL, USA
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Posted: 9/8/2024 8:00:36 AM EST
[#13]
I didn't read through the comments.
Same as with a bolt gun and having a buddy help makes it easier. Cover the objective lens, scope on max power mount the gun with the correct LOP for you in the most utilized position DO NOT move your head open the obj cover--again do not move your head slide the scope to obtain the ideal eye relief. You may have to loose the level, have a mount with shorter cantilever, etc. Hope that helps. |
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Posted: 9/9/2024 12:37:08 AM EST
[#14]
if you shoot nose-to-charging-handle, yes, you'll have to move the scope forward to get the right eye-relief, for your shooting position. that's what determines where the scope goes, the eye relief for your normal cheekweld.
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CA, USA
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Posted: 9/12/2024 11:17:59 PM EST
[#15]
Really the second poster really summed it up well.
Basically you should fit the LOP of the stock first which most people recommend make your arm into a 90 and reach for the trigger. Then I like the method of adjusting the stop eye relief in the prone with the scope almost to close. That way when I'm not in the prone and your head is naturally not as close to the ocular lense as it is in the prone you get good reticle view. |
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