oberkommando
New member
I have M1A with 1.6320" chamber head space which is below NATO and into 308 area, problem is, I have considerable Lake City brass for reloads, can brass be sized down enough for this chamber, or should it be reamed larger to mil spec. ( chamber for 7.62 NATO is 1.6355" min and 1.6405" max) Average size of NATO Cartridge is 1.6320" which would leave zero or a minus head space condition with many NATO rounds, (at least factory loaded) do not want gun firing out of battery.
My problem is that the 7.62 cartridges in the average are 1.632"+ CARTRIDGE HEADSPACE exceeding 308 Win. min. CHAMBER HEADSPACE 1.630"MIN., 1.634" no-go,and 1.638 field reject.
Custom dies from chamber casting?
My problem is that the 7.62 cartridges in the average are 1.632"+ CARTRIDGE HEADSPACE exceeding 308 Win. min. CHAMBER HEADSPACE 1.630"MIN., 1.634" no-go,and 1.638 field reject.
Custom dies from chamber casting?