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Originally Posted by Peregrino
I'm amazed this thread hasn't mentioned range estimation yet. Personally I think it's more important than anything covered so far in the ballistics discussion (military quality ammo has relatively uniform, well known ballistics).
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Sounds like a great thread, sir. 
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Originally Posted by stanley_white
FYI - We're using M855.
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M855 only clocks about 2640 fps out of a 10.5" barrel, well below the velocity required for full fragmentation of the round. I don't know what your uses will be, but you might consider using a heavier commercial HP or a specialty round if they are available to you.
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