A very extensive article by Brian Pearce in August 2007 Handloader suggest one not exceed 43,500 CUP with the newer Marlins. I believe a copy can still be had with a phone call to Handloader and a $10 bill. A wealth of loads and pressure data with several powders and slugs. Regardless, anything in that range is going to dish out serious recoil. I'm running some 405 grain slugs at 28,000 CUP loads, and that's enough punishment for me.
Last edited by 1minute; 03/05/11.
