I have a 308 AR that has a very long chamber , almost field gauge length . This means I size my cases for that firearm .006 to .008 longer then for my other 308's .
I have some specialty bullets that are limited in quantity that I worked up in the AR-10 and I'd like to reduce the amount used to find loads . I'd like to load that same charge in cases sized for my other rifles . How much difference is there if any in pressure when charging a case with .008 shorter case headspace ?
In my head I think very little because many people size there cases way shorter then you need just by following most die instructions so some are already .006+ shorter then needed and I don't see manuals pointing out this could be a problem as far as reducing charge weight if you do size your cases "short " BTDP .
I'll add these loads are not max but are a bit above the middle point of "safe" charges .
I have some specialty bullets that are limited in quantity that I worked up in the AR-10 and I'd like to reduce the amount used to find loads . I'd like to load that same charge in cases sized for my other rifles . How much difference is there if any in pressure when charging a case with .008 shorter case headspace ?
In my head I think very little because many people size there cases way shorter then you need just by following most die instructions so some are already .006+ shorter then needed and I don't see manuals pointing out this could be a problem as far as reducing charge weight if you do size your cases "short " BTDP .
I'll add these loads are not max but are a bit above the middle point of "safe" charges .