What are the booster hole opening for the Mg42 for 762X51 and 8mm? I know they increased and decreased the size which affected the cyclic speed firing rate on the 8mm. I think it was 10mm for .308 and 11mm for 8mm? Thanks
It varies, I've had some 13.5mm boosters on German kits and 10mm boosters on m53 kits. Early war ones had a faster rof for the 8mm mgs, after the war and the mg1-3 were implemented and the booster and bushing were changed to 308 the diameter dropped down quite a bit. If you really want to rip fast you can run 8mm through a mg3 booster... almost too fast tbh, makes the gun start eating yourself. This is a 8mm with a 13.5 booster.
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