
Originally Posted by
a0cake
The AR-15 has enormous accuracy potential. With a good barrel and good ammunition, 1 MOA is entirely attainable and to be expected. Speaking about mechanical, potential precision, I like to see all my AR's shooting in vicinity of 1 MOA. Can I shoot 1 MOA from any position other than prone, off the bench, or from an improvised supported position? Nope. But when the hardware is out there, why not take advantage?
If I'm out of breath, my heart rate is in the 180's, my eye-pro is fogging up, and I'm being stressed, let's say my own potential for precision opens up to 4 MOA. If I break the trigger at the outside edge of that 4 MOA ring, and my rifle / ammo are capable of 1 MOA, I'm going to miss by a maximum of 5 MOA. If I'm shooting M855 for example, a classic 4 MOA load, I might miss by 8 MOA. No-go.
So saying that most shooters are only capable of 4 MOA and thus 4 MOA is acceptable out of a rifle is false logic. You have to consider error stacking.
You mitigate as much error as possible through training, and then take it down one step further with equipment.
So, my answer is 1 MOA inherent, mechanical potential out of the rifle and ammo.
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