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Posted: 2/19/2016 2:22:17 PM EDT
| I recently loaded up some 110gr 300blk for a ladder test. I loaded 4 sets of 5 each with a .3gr increment. I'm planning on going out tomorrow to do some testing, but last night it hit me kinda funny. I have an Aimpoint Pro on that rifle. How am I going to test for accuracy with that setup I asked myself?? So, what do you do when doing accuracy testing for a rifle that only has a RDS? Or do you just load a few to check for pressure signs and function testing? |
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How big is your dot? 2 Minutes Of Angle? I recommend a target like the NRA SR-1, or any target that has a white background and ~6 MOA black bull. Circle in a circle sight picture - the rest is on you. After each set, check for pressure/function/precision, etc. Member Molon has an article somewhere around here about precision shooting with an Aimpoint. |
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Use a target with a solid round black bullseye about 3x the MOA of the dot (e.g. 2 MOA dot at 200 yards = 4", so use a solid black 12" circle as the target). I find the NRA High Power 200 yard target that simulates 600 yard slow fire works really well with my 2 MOA PRO. At the range, reduce the dot brightness to the minimum that you can still see clearly against the target. Wear clear glasses to get the crispest dot possible, and center the dot as best you can - you want a black halo surrounding the dot in perfect symmetry. Get a solid rest under the handguard and under the rear of the gun (pistol grip or buttstock). Control your breathing, hold and SQUEEZE.
Using this method I can shoot close to the mechanical accuracy of the rifle; here is a typical 1.25" group at 200 yards (=0.625MOA): 
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Quality red dot sights are surprising accurate, the previous poster gave excellent advice.
The dimmest possible brightness works best for me provided it's not so dim I can't really see it. Look at the bullseye instead of the dot, placing the dot in the center when shooting. Most rifles will shoot inside of the 2moa dot using match grade ammo. They are not designed for precision shooting, they're designed for speed to target. There is no better sight IMO for self-defense or combat. True precision requires high magnification and I always use a high powered scope for load development. Once a great load is established the red dot get zeroed. |
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What distance will you be testing at?
How good is your vision? I find at 50 yards, a 3" shoot and see is perfect for a 2moa dot. At 100 yards, a 6" works great. I do have good vision. A buddy of mine does not, and he sometimes has issues centering the dot on those size targets at those distances. |
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