Discussion in 'Handloading and Reloading' started by rebjak23, Apr 18, 2011.
Sizing dies are made within certain parameters, which are all within specification for the caliber, but still vary in size. If you got one on the high side, then it's not sizing the Remington brass enough. I have five .45 acp sizing dies and none of them are the same exact size.
Hope this helps.
They sell a "undersized" sizing die that should fix you up. It's .001 smaller than standard.
Make sure you are using a Taper Crimp die. A crimp that is too tight actually loosens the case grip on the bullet.
A taper crimp of .469 is too tight in my experience. Back off to .472 and see if that helps. I have a LNL and use RP 45 ACP brass all the time with standard dies and have not experienced the problem you are having. The only brass I have trouble with is S&B, Amerc and, WCC. But, that is with primer pockets. Those cases go straight to the recycle bin.
BEFORE running the case through the PTX die. If it looks like it would have enough tension on the bullet without the expansion of the PTX die but still needs a slight flair/bell to the case mouth, try the PTX from www.Powderfunnels.com as it only bells the case mouth without expanding the case further down. I see no reason to expand the case more than just a bell/flair at the mouth but that's just me.
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