Primer pocket magic or horse sense???

by rob , Friday, November 21, 2014, 17:14 (3595 days ago)

Actually, I've known a pretty smart horse or two in my day so that may not be an apt description...but I digress. In this article http://www.ammoland.com/2014/11/450-smc-ammo/#axzz3Jk5asatz the author talks about the 45 SMC (I guess it stands for short magnum cartridge?) produced, now, by Double Tap. Anyhow, supposedly, you can't just dump more powder in the .45 ACP case to get more power and do it safely so the trick is to manufacture a special acp (or SMC) case with a small rifle primer pocket making it possible to achieve about 6 thousand psi (if I remember correctly) than is safely possible in an acp case. Now, I'm no engineer or ballistian but my BS meter is going off the charts. The 45 Colt and .44 Magnum are capable of significantly more pressure than that with large pistol primers and 26,000 psi is still pretty darn mild for a modern brass cartridge case with any primer and IIRC brass doesn't start flowing until around 80k psi. And on top of that, I have several ACP cases that came with small primer pockets straight from CCI. And doesn't the 460 Rowland use factory acp cases with large primer pockets with only upgrades to the gun being a supported chamber, heavier recoil spring and muzzle break? Just curious what y'all think of this.