Sakoluvr My 5th edition of Nosler does not even list RL15 for the 350 Rem. Mag under the 225 Partition. The fastest load they list is
W748 59 grs. @ 2700 fps. Next would be IMR4320 60grs. @ 2640. They
also noted that the W748 load was the most accurate load tested.
This was 22" barrel and OAL of 2.800" Hope this may be of use to you. Cheers NC
