Originally Posted by lif2fsh
If I knew you had a sheep tag, then I should be a jerk and not let you have any brass!!!
Thanks guys for the help, found some from BLACK SHEEP. Would like some info. into LEFTY'S
in making from 300 h@h or 375 h@h brass and neck/ blow it out.
P.S. Pete, and its my 4 elk tag in NEVADA.
I've done over 100 375's to 7mmstw; you just neck 'em down in two stages (either use a 338 or 300 win die with the shoulder at the correct position for the intermediate) and then run them through a fl 7mmstw die. Trim your casings square and shoot either a mild load with a jambed bullet or pistol powder and cream of wheat (no bullet) to blow out the shoulder. I prefer the mild load route as the other will make your riflle filthy if you do any quantity at once.
If you use 300 h@h casings you can just run them through the stw die but you will likely need to use a load that is 15% down give or take. I don't know how well the shoulders fill out with 300 h@h in one pass as I've not yet used them, but it is a heck of a move on the shoulder.