I’ve been corresponding with Tom Gibson of Accurate Molds on getting the best accuracy from one of his 10mm revolver molds designed for the GP100, which he also shoots & loads.
Tom says he’s running a .41-magnum roll crimp die.
Before I run out & buy one, I was hoping to get corroboration as to whether this will work.
I don't see any issue with this idea. Except he means 41 Short Colt I believe. You would need to use the 41 revolver roll crimp die from Old West bullet molds.
https://oldwestbulletmoulds.com/shop...ated-crimp-die
Last edited by Tall; 07-16-2023 at 06:16 PM.
The .41 has a longer case than the 10 mm.
So it seems like it won’t work to me.
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The 41 Magnum has a longer case and a bigger bullet diameter. The Old West crimping tool works both on 41 Long Colt and 41 Short Colt cases. A 41 Short Colt case is .637" long.
10MM cases are .992" long. Bullet diameter is the same as 41 Long Colt and 41 Short Colt at .405".
I would say the tool from Old West is the one to use.
10mm revolver? Use a trimmed-down 38-40 seating die, with the seating stem removed.
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