That's not exactly true. The max working pressure for the 454 is 65,000psi, and a 45 Colt is 14,000psi with a +P load in the 15-20,000psi range. A heavy 25,000psi range load should only be used in strong revolvers like Blackhawks and similar, Contenders, and certain strong rifles. Some "very heavy" Colt loads can run in the 30-35,000psi range, and yet, that is only about half of the allowed working pressure of a 454 Casull.I disagree. In a modern firearm with brass designed for modern pressures as mentioned. The 454 isn't really anything but a long Long Colt. You could just trim 454 brass and load to the same pressures as the 454 and it would just be a 45+P. Pressure specs are somewhat arbitrary and relative to firearms more than cartridges.
It isn't all about the case strength, but one must also consider the design and build of the weapon the load is being fired in. Extended usage of such loads can result in damage to your rifle or handgun, void its warranty, and may lead to other issues. Will it work a few times or more? It may, but as someone who has played a lot with high pressure loads in Contenders, after a while, signs of excessive wear and stretching began to occur. Thus, why they created the G2 and then the Encore frames.
Last edited: