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For rifle use, M2 Ball ammunition proved to be less accurate than the earlier M1 cartridge; even with match rifles, a target group of 5 inches (130 mm) diameter at 200 yards (180 m) using the 150-grain (9.7 g) M2 bullet was considered optimal, and many rifles performed less well.[5] The U.S. Marine Corps retained stocks of M1 ammunition for use by snipers and trained marksmen throughout the Solomon Islands campaign in the early years of the war.[6] In an effort to increase accuracy some snipers resorted to use of the heavier .30-06 M2 armor-piercing round, a practice that would re-emerge during the Korean War.[7] Others sought out lots of M2 ammunition produced by Denver Ordnance, which had proved to be more accurate than those produced by other wartime ammunition plants when used for sniping at long range.

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.30-06 Springfield

Obviously, my last results are considerably better than that. I have some of the M2 A/P rounds, but have not fired any since my discovery of the 2 issues needing correction.

I also have not fired any 150gr or 180gr rounds since the initial trial and the rifle may now show a more definite preference for something other than 165gr.

I think I now have it shooting within design specs or better, but I also think there's more accuracy available if I do a little more tinkering - which I will. I'd like to see all 5 rounds touching at 100yds.... and in the X-ring..... a tall order, but I think it's possible. I would not only like to take reasonable head shots, but I'd also like to feel confident I can put the round in either eye socket.

Frank

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'89 G-Raider Supercharged 3.0L, MegaSquirt 2, lockup A/T, 2.5" exhaust, 155k, Cibie H4s/Oscar SCs, Hella Micro DE fogs, Cobra CB, Superwinch hubs, LSD rear/Aussie Locker front, Bilsteins, 165A alt., Lifeline AGM, Rust-Oleum

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