I have no answer except to think there is something different about the lot of powder MIB has for AA-2460.
Sir Jerry worked up to excellent results in his rifle, even went to 83 gr and backed off to 81 grains. He had a different lot of powder is the biggest difference. And we are only talking about a difference of one or two grains of powder. The rifle chamber and barrel differences alone could do that. Still scratching my head over that one. I would use Sir Jerry's loads in Sir Jerry's rifle without reservation, and know they are as good as it gets for all practical purposes.
More data from MIB will be forthcoming. I trust the work there. Michael McCourry is good.
Ron aka "Rip" for Riflecrank Internationale Permanente NRA Life Benefactor and Beneficiary .458 Winchester Magnum, Magnanimous in Victory THE WALKING DEAD does so remind me of Democrap voters. Donkeypox.
