a__l__a__n
Member
- Joined
- Dec 27, 2014
- Messages
- 25
I've been reloading various calibers for years but am just beginning to reload 45 ACP. I've ordered bullets from precisionbullets.com (free shipping!) which are advertised as 0.4515 diameter. I've measured case rim diameter at 0.012, so the no-crimp diameter (only flare removed) would be 0.4755. However, there is a nice video explanation of crimping on their site which advises starting at 0.468 - 0.469"
https://precisionbullets.com/2019/08/03/bullet-crimping/
It seems to me that such a tight crimp would necessarily deform the bullet - which I've always heard was a bad thing.
While waiting for my bullets to arrive, I've pulled a few various bullets from commercial ammo after measuring the OAL. Then I reassembled them without powder & primer to test cycling in my 1911 at various OAL for each bullet style. I've discovered that I need at least 0.468 crimp on these bullets to prevent bullet setback during cycling. But when I pull a bullet after giving it a 0.468 crimp, the bullet has a crimp dent.
Maybe I should just follow the advice on the video and not worry about the deformed bullets.
Am I missing something?
Thanks in advance for your insights.
https://precisionbullets.com/2019/08/03/bullet-crimping/
It seems to me that such a tight crimp would necessarily deform the bullet - which I've always heard was a bad thing.
While waiting for my bullets to arrive, I've pulled a few various bullets from commercial ammo after measuring the OAL. Then I reassembled them without powder & primer to test cycling in my 1911 at various OAL for each bullet style. I've discovered that I need at least 0.468 crimp on these bullets to prevent bullet setback during cycling. But when I pull a bullet after giving it a 0.468 crimp, the bullet has a crimp dent.
Maybe I should just follow the advice on the video and not worry about the deformed bullets.
Am I missing something?
Thanks in advance for your insights.