Alliant sez:
300 Win Mag
165 Speer:
Winchester 3.34 24" Fed 215 Reloder 26 83.2 3,273
180 Speer
Winchester 3.34 24" Fed 215 Reloder 26 80.2 3,089
Knock down 5% and try.
RL25 is better in the 300 H&H for 165-8s
Any 300 WSM load will work.
RL22 to 26 will work, 25 and 26 prefer a 26" bbl.
good luck with the Elk !