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Posted: 4/5/2016 3:33:04 PM EDT
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I finally found a scope for my SR-25 and I'm looking to complete the package. I'll be using a Premier Tactical 3-15x50 on it and want to mount it as low as possible, and I'd like to use a one piece mount. I've looked at Badger Ordanace, ERA-TAC, Sphur and they all seem like great choices, but there's quite a few options to choose from which I'm fairly ignorant on.
- What is the minimum height I can go with? And is there a simple formula for determining this? - Built in MOA. Why or when would I need this option? Should I just stick with 0 MOA. Thanks! |
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Quoted:
I finally found a scope for my SR-25 and I'm looking to complete the package. I'll be using a Premier Tactical 3-15x50 on it and want to mount it as low as possible, and I'd like to use a one piece mount. I've looked at Badger Ordanace, ERA-TAC, Sphur and they all seem like great choices, but there's quite a few options to choose from which I'm fairly ignorant on. - What is the minimum height I can go with? And is there a simple formula for determining this? - Built in MOA. Why or when would I need this option? Should I just stick with 0 MOA. Thanks! 1) With the 50mm objective for a one-piece mount it will come down to how big the housing is moreso than rail interference, i.e., for S&B it's quite large and minimizes how low you can go with some one-piece mounts. For your scope, 50mm -> ~2", divide by half you have an inch from bottom of objective to centerline. If you pick a scope with 10, 20 etc MOA, it will be slightly less because of the cant. I would think a 1.18in (e.g., a spuhr 4601) or greater would clear just fine -- and that's a pretty low mounting height, especially for a 1-piece. There's a calculator out there somewhere. 2) Built in MOA, depends how far you plan on shooting, scope adjustment capabilities, etc. With a 34mm tube on that scope a 20MOA mount given the 0MOA rail on the rifle would be what I would do. 3) Not stated, but you may need to line your scope up in its desired position on your rifle to determine whether you need a cantilever mount because I don't think the SR-25 has a monolithic rail. You will have to compare the measurement from the front of the upper receiver to the bell housing against the distance from the back of the front ring to the front of the mount so that it doesn't span the upper receiver and hand guard. That scope may be small enough that it doesn't matter, but for my PMII 5-25 a non-cantilever mount isn't an option to position it where I want, even on a 308 upper. If you need a cantilever mount that may limit how low the scope can sit because they are taller, at least with spuhr and larue. I think their shortest mounts are 1.4X with cantilever. Non cantilever in spuhr goes down to 1.18 and for larue it's 1.3X. Good luck. |
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Quoted:
I finally found a scope for my SR-25 and I'm looking to complete the package. I'll be using a Premier Tactical 3-15x50 on it and want to mount it as low as possible, and I'd like to use a one piece mount. I've looked at Badger Ordanace, ERA-TAC, Sphur and they all seem like great choices, but there's quite a few options to choose from which I'm fairly ignorant on. - What is the minimum height I can go with? And is there a simple formula for determining this? - Built in MOA. Why or when would I need this option? Should I just stick with 0 MOA. Thanks! Your lower bound for height with that objective size is determined by ergonomics primarily. You shouldn't go below absolute cowitness height. |
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