hello;
have a marlin 1894 with micro groves in the barrel. cast bullet accuracy is not not good at all. have the lee .430 " push through sizing die. bullet is a 258 grain keith style swc.
has anyone take an 11mm (.4331") drill bit, put it and the lee push throught sizing die in a lathe and drill out the .430" sizing die to .4331"????? if so how did it work out???
thanks for any input.
rp