« Reply #40 on: January 16, 2025, 11:19:43 PM »
Frank, IIRC primer flow was one of the problems with Super, and SMC addressed it by switching to Small Rifle primer instead of Large Pistol. IF I can ever get a hold of Fernando Coelho at Panteao, that'd be a question for him.
Hey, does Fearless Leader Mike B. ever post here anymore?
I wasn't sure, but I
thought that's what happened. It's been a long time since I read up on the .450 SMC design and couldn't remember.
Here it is in black and white.
Coelho was fed up with the inherent issues of the .45 ACP/.45 Super cartridge case and the damage being done to the potential growth of the .45 Super. One of the case problems was primer flow; you could experiment with different brands of primers and powder, but most of the time primers would flow back around the tip of the firing pin. The solution: switch to a small-primer pocket and utilize a small-rifle primer. Coelho reached out to Starline again, asking the company to make .45 Super brass with a small-primer pocket. That solved the primer-flow problem and Triton Cartridge soon began offering factory-loaded .450 SMC ammunition. https://www.shootingillustrated.com/content/the-450-smc-a-potent-practical-defensive-cartridge/
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