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Posted: 10/11/2007 6:10:44 PM EST
Has anyone ever chronographed blue box BHA 69gr MHK from a 20" AR?

I am using the factory velocity, listed on black-hills.com, and JBM Small Arms Ballistics calculator. I was trying some long distance, 500 yrd, shooting the other day and I was running about 8-10 inches low, using the info that I had gotten from the calculator.

This was one of my 3 shot groups, which I thoght was pretty impressive for me. This is after I'd made the adjustments needed.

Link Posted: 10/11/2007 7:07:18 PM EST
The barrel is just the stock Oly Arms that came with it. Originally it was a regular 20" A2.
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