Skydivermn
Member
- Joined
- Feb 7, 2011
- Messages
- 6
I'm confused about how much crimp I should put on my .45ACP. I'm currently using a 3 die RCBS kit (resize/deprime, bell, seat/crimp), and have been guilty of crimping the living shizzle outta the case, all the way to putting almost nothing on it and having the bullet get pushed into the case when loading into the magazine. I've improved upon my crimping, but I'm still unsure about why a small number of my cartridges have a bullet that will spin/push into the case.
Let me explain what happened last time I was reloading. Looking at my Lyman #49 reloading manual (printed in 2008), it says that the case mouth should be .473 (I think these numbers are accurate, they're from memory). To me, that means basically increase crimp until you're at that number. When loading up a few boxes on my RCBS Rock Chucker, I had 2 cartridges that would still allow me to rotate the bullet in the case. All 98 others appeared to be tight (but not too tight where plated bullet is all wrinkled at the case mouth) and ready to go, all very near .471 measurement. I know that all my cases were run through the sizing and depriming die, but I'm not sure why these fit the bullet differently. Shouldn't all cases be brought back into a valid size with resizing? Or are these cases perhaps just past their useful life? If this is the case (no pun intended!), there's nothing that can be done? Also, do I crimp to .473 or is my slightly tighter crimp no big deal? Is there some acceptable range of crimp? I'm using a Glock21 with both factory and Lone Wolf barrels. My rounds are mostly 5.7gr W231 with 200gr plated lead flat nose out of the 5" barrel. My rounds usually go BOOOM, so I'm doing enough things correctly, but am I missing something obvious? Thanks for your help!
SkydiverMN
:banghead:
Let me explain what happened last time I was reloading. Looking at my Lyman #49 reloading manual (printed in 2008), it says that the case mouth should be .473 (I think these numbers are accurate, they're from memory). To me, that means basically increase crimp until you're at that number. When loading up a few boxes on my RCBS Rock Chucker, I had 2 cartridges that would still allow me to rotate the bullet in the case. All 98 others appeared to be tight (but not too tight where plated bullet is all wrinkled at the case mouth) and ready to go, all very near .471 measurement. I know that all my cases were run through the sizing and depriming die, but I'm not sure why these fit the bullet differently. Shouldn't all cases be brought back into a valid size with resizing? Or are these cases perhaps just past their useful life? If this is the case (no pun intended!), there's nothing that can be done? Also, do I crimp to .473 or is my slightly tighter crimp no big deal? Is there some acceptable range of crimp? I'm using a Glock21 with both factory and Lone Wolf barrels. My rounds are mostly 5.7gr W231 with 200gr plated lead flat nose out of the 5" barrel. My rounds usually go BOOOM, so I'm doing enough things correctly, but am I missing something obvious? Thanks for your help!
SkydiverMN
:banghead: