Reed
Active Member
I've never given gas check dimensions much thought. Just bought them, used them, and was happy. That was for .30 caliber.
I have my eye on a 405 gr mold over at Mountain Molds for my recently acquired 45-70. Turns out it's Ballard rifling, at .457. I've read that Hornady .45 gas checks are good from .452-.458. Anyone know the actual dimensions of Hornady's .45 gas check inside and out? I'll be sizing at .459. Does anyone have experience sizing the Hornadys at .459? Did they stay tight? Should I care? I read one of Dan's posts on his forum that by the time they launch and obturate, they will be tight.
Sages says Gator checks are .068 in diameter, made for a .426 shank. Anyone happy with those?
Part of Dan's description says:
cut for Hornady 45 check
(can cut for BSS 458 on request)
I did some looking around, but didn't find what BSS 458 refers to. What does it mean?
I have my eye on a 405 gr mold over at Mountain Molds for my recently acquired 45-70. Turns out it's Ballard rifling, at .457. I've read that Hornady .45 gas checks are good from .452-.458. Anyone know the actual dimensions of Hornady's .45 gas check inside and out? I'll be sizing at .459. Does anyone have experience sizing the Hornadys at .459? Did they stay tight? Should I care? I read one of Dan's posts on his forum that by the time they launch and obturate, they will be tight.
Sages says Gator checks are .068 in diameter, made for a .426 shank. Anyone happy with those?
Part of Dan's description says:
cut for Hornady 45 check
(can cut for BSS 458 on request)
I did some looking around, but didn't find what BSS 458 refers to. What does it mean?