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Headspace data for 375HH

kaiwang188

Private
Full Member
Minuteman
Nov 27, 2010
53
4
So I know the headspace for the belt cartridge is different from say, 308Win. What I mean is the measurement from datum line to the
bolt face. RCBS has a precision mic that measure this distance for the belt cartridge, like 300 winmag. But I ordered one for 375HH from
Midway and it is back ordered. Anybody can share this number? 300winmag and 375HH has a same datum line so I can use the same
case comparator from Hornady. Want to know the exact number to set my FL sizing die. A virgin brass from Hornady measures 2.454",
from Noma is even lower, at 2.435". Thanks