Most belted cartriges like little or no headspace .So when sizeing the brass
size only enough to chamber the round.
This will normally improve accurace.
If you have a neck sizer use it for a couple of loads then just touch the case
with the full length sizer .
Once you fire a belted case there is no headspace unless you size the
If the rifle has less than .001 headspace (using a headspace gauge) then
you can full length size every time.
J E CUSTOM