An acquaintance is getting into reloading and he wants to load for his 7mm Remington magnum. He uses 160gr bullets and will not deviate from that bullet. I've been helping him out with equipment, some guidance and answers to his questions but I don't have much experience with the 7mm Rem Mag. Another person recommended IMR 7828 for the 7mm Rem mag but my manuals show IMR 4350 as the optimum powder for 160gr bullets. My Sierra manual even goes so far as to recommend IMR4350 as both the best accuracy load and the best hunting load with that bullet.
Does anyone have some insight they would be willing to share?