The Firing Line Forums - View Single Post

Sevens · April 4, 2010, 01:10 AM

I can't imagine helping much after SL1's comprehensive post... but here's a little CHEAT method that some of us have used in the past!

Grab some decent factory ammo that you trust (quality from one of the big makers, not some low brow re-man stuff in a plain white box!) in each of the different calibers that you intend to load and look at them with a close eye. If you grab a piece of .44 Mag factory ammo, you will see a pretty obvious roll crimp where the brass is gripping that bullet. Grab some decent 9mm FMJ and you won't see that at all, but a nice flat edge on the end of the brass/case mouth to facilitate a perfect fit in the chamber.

Try and see how the pro's do it, and then see if you can replicate it. Not scientific, but it may help a bit.

April 4, 2010, 01:10 AM	#6
Sevens Senior Member Join Date: July 28, 2007 Location: Ohio Posts: 11,775	I can't imagine helping much after SL1's comprehensive post... but here's a little CHEAT method that some of us have used in the past! Grab some decent factory ammo that you trust (quality from one of the big makers, not some low brow re-man stuff in a plain white box!) in each of the different calibers that you intend to load and look at them with a close eye. If you grab a piece of .44 Mag factory ammo, you will see a pretty obvious roll crimp where the brass is gripping that bullet. Grab some decent 9mm FMJ and you won't see that at all, but a nice flat edge on the end of the brass/case mouth to facilitate a perfect fit in the chamber. Try and see how the pro's do it, and then see if you can replicate it. Not scientific, but it may help a bit. __________________ *Attention Brass rats and other reloaders:* I really need .327 Federal Magnum brass, no lot size too small. Tell me what caliber you need and I'll see what I have to swap. PM me and we'll discuss.