Sorry, but I don’t shoot Lapua after getting an extremely bad batch of 223 match brass that had worse consistency than RP or WW. Maybe this will help maybe not.

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The Norma 556 started life as 62 grain NATO.
Federal/LC 556 was 55 grain NATO
Nosler commercial
Norma commercial
Mix of Norma and Federal to fill out my 50.
Norma 556 being the heaviest and most consistent.
Norma commercial and Federal/LC being damn near identical
Nosler being the oddball.


Swifty