Using the info you supplied and the rest at default settings your max load would seem to be at 64 grs giving you a pressure of 58451 psi. Vel from a 22" barrel would be 2859 ft/sec with 96.65 % powder burnt. Your saami max according to QL is 62366 psi. I would start somewhere around 59 grs for a start pressure of 43595 psi and work up. Be safe
Thank you. I have an encore in 350 rem mag. Same bullet, powder but loaded to 2.99.Currently shooting 66 gr. Mv from a 26” barrel is 2750. So 64 gr seems reasonable at that coal. Picked up a remington 600 and can only load to 2.8. The original load was worked up in quickload by a buddy.