Anyone casting for the Martini Mk IV? I have shot mine a couple of times with .458 molds with lackluster results. I tried some Swedged 451 boolits from Buffalo Arms with some paper patching and they worked much better.
Does anyone know where I can get a PP mold that drops about a 480 grain boolit that is good for the Martini MK IV?
Has anyone tried RCBS's #57923?
http://www.buffaloarms.com/Detail.as...62447&CAT=4126
Thanks!