I have two loads for my Rem 721, both of which aren’t top velocities but both will put four shots between 3/4-1”. It seems to like loads in the 2900 fps range.
64 grs of H-4350, a 180 Partition, Fed215, Hornady brass at 4.018 b-o (base to ogive with my Hornady gauge) for 2900 fps +/- 10fps
56 grs of IMR 4166, a 165 A/bond or 168 B/Tip, CCI 250, Nosler brass at 4.018 b-o for 2925 +/- 15
