Another newbie with data he's read and passed incorrectly on . He obviously reloads for 2 cartridges . Heck I've chambered more rimmed cartridge barrels and worked up loads from scratch than I really want to remember . One 25-20 ss hand formed case is worth hours or labor , you don't want to mess those up .
Sorry to the OP . If you reload and need cartridge requirements not commercially available , such as round ball reduced loads for turkey or light cast bullet loads for practice . You can gain a lot of case life by creating a false shoulder , or jamming the bullet or o-rings on your first fireform load . Then from that point on with your rifle specific cases , resize just enough to easily chamber . You'll have to determine that point by trial and error .
A lot of good info in older (1970s) reloading manuals both Speer and Lyman . If hunting I would double check feeding with min sized ammo .
Sorry for the sidetrack rant , but safety and understanding headspace is important .
Sorry to the OP . If you reload and need cartridge requirements not commercially available , such as round ball reduced loads for turkey or light cast bullet loads for practice . You can gain a lot of case life by creating a false shoulder , or jamming the bullet or o-rings on your first fireform load . Then from that point on with your rifle specific cases , resize just enough to easily chamber . You'll have to determine that point by trial and error .
A lot of good info in older (1970s) reloading manuals both Speer and Lyman . If hunting I would double check feeding with min sized ammo .
Sorry for the sidetrack rant , but safety and understanding headspace is important .