My opinion is the 40,000 CUP loads are legitimate loads in the Modern Marlin,but having said that,I use and shoot only hunting loads that are of Max or close to it.That being one or two or so is all that is being shot out of my Guide Gun per year with a Premium Jacketed Bullet.All the rest are far below a Max pressure when just shooting for fun.Everyone said the Puma .454 levergun wouldn't stand up to the SAAMI 65,000 PSI loads and as far as I know,it has and many have tried to see with Max loads and havn't had any problems.
Just my opinion.
