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 I knew you had a sheep tag, then I should be a jerk and not let you have any brass!!!
OUCH! lol.
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.
Look for 8mm magnum brass. I had to buy it that way. Just run it in your die and you're done. Midway had some when I bought it.