Thread: Heaviest weight for a .223 service rifle?
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Old 01-24-2011, 01:51 PM
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VAdoublegunner VAdoublegunner is offline
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I have an Armalite SPR with a 20" heavy barrel, 1:9 twist. It does very well with Hornady 55gr FMJ-BT bullets (man, I just checked a box of 500. The price tag on them was $22.95 ..oh, for the days!), giving me MOA to just slightly over with a full load of Varget. I generally load all my .223 with Varget.

It will shoot 69gr bullets about the same.

What it really likes is 62/63gr bullets, it's favorites being the Sierra 63gr bullets. They will easily do 1/2 MOA.

But it will not stabilize the 77 gr bullets I tried. Couldn't get any charge or velocity to work well. I mean, I can get 2-2.5" groups, but that's not what I would consider decent out of that rifle.
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