Oldelkhunter,
I am remebering the psi from the Guns and Ammo article I read. If I remember correctly the .50S&W had similar pressures as the .454 Casul, which is in the nieghborhood of 60,000 psi. I could be wrong, wouldn't be the first time and won't be the last. The reason I remember this is someone had asked if the .50S&W could be chambered in a Marlin 94 and this was the reason given for not seeing the .454 and .50 in lever action form except for the Legacy by Puma is chambered for the .454. I am asking because I didn't have any info to lead me anywhere.

Dr Fatguy