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Posted: 9/29/2006 7:38:20 AM EDT
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I have an EOTech 512 and I've noticed some interesting patterns while at the range. If I use a high cheek hold while shooting at 100 yards, and even though the eotech is on target, i shoot 2-3 inches higher. If I try to keep the reticule centered in the eotech window at 100 yards, it shoots closer to center target. I also notice that if i have a very low cheek hold, I shoot about 2-3 inches lower. The eotech remains on target, but the bullet seems to be off a little bit depending on how i'm looking at the view window. Is this normal? I have filp down front sights also (not that this should really matter). Also, any idea how far I should sight the eotech in for? Is 100 too far? |
That is his problem. Most people who are not precision shooters have a hard time understanding the effect on point of impact of the pressures you place (via your cheek and hands) on the rifle. The rifle's behavior during recoil has a HUGE influence on where the bullet will strike. The pressures you place on the rifle to counteract recoil determine the speed and direction of the weapon's motion in response to the bullet leaving the barrel. By varying the amount of cheek pressure on the stock, he is altering the forces acting on the rifle, which in turns alters the manner in which the rifle recoils, which in turns alters the point of impact on target.] Shooting a precision smallbore rifle in iron-sight prone competition will make that lesson painfully obvious, as they are one of the most sensitive firearms to shooter input. Long story short: keep your cheek weld and hold on the rifle constant and your point of impact consistency will improve. There is nothing wrong with your sights. |
Exactlt what I was getting at in my post above. Zero changes with recoil, recoil changes as cheek weld changes. |
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I have had excellent accuracy w/ my 552. I do not change the cheek weld though so what these folks are saying is food for thought. I understood the parallex to not be an issue within 100yds (but over 25yds). Do a side by side comparison with ammo, cheek weld, grips, and other variables. Also, duplicate your basic tests on different days to make sure you have eliminated operator error/fatigue, etc. I have been through this test myself recently on another issue and operator error is the biggest variable since we change more than our rifles do... ETA. In my last tests I shot a 100yd group of 12 shots w/ WWB and my Bushy w/ the EOtech. I had 1.6" group with one "flyer" that made it a hair over 2.25". |
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