still looking for 257 head stamped brass but decided to play with some of my 7rm brass.
it is 1x fired and deprimed, not sized at all
i stepped down to 270wby then to 257. the untrimmed length i am getting is 2.530 or less, my longest so far is 2.533. one piece is 2.500. i thought annealing may help stretch the brass during sizing but i see no or minimal difference. i also tried unannealed brass first.
hornady book states max trim length is 2.539. is this safe or am i getting on the edge or past it on too short?
what say the gods of LRH reloading?
it is 1x fired and deprimed, not sized at all
i stepped down to 270wby then to 257. the untrimmed length i am getting is 2.530 or less, my longest so far is 2.533. one piece is 2.500. i thought annealing may help stretch the brass during sizing but i see no or minimal difference. i also tried unannealed brass first.
hornady book states max trim length is 2.539. is this safe or am i getting on the edge or past it on too short?
what say the gods of LRH reloading?
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