you can purchase sub calibre inserts.....because the yhave there own barrels and chambers the pressure issues are minimal..the only bit of big gun that touches pressure is the face of the block...primer and case....
you can purchase sub calibre inserts.....because the yhave there own barrels and chambers the pressure issues are minimal..the only bit of big gun that touches pressure is the face of the block...primer and case....
75/15/10 black powder matters
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