41rem
Active Member
Just received a pound of this new slow burning rifle powder, I'd like to get a starting load for the 338 RUM using the Nosler 250 grain Accubond with Federals 215 magnum primer.
The new Speer book shows a starting load of 85.0 grains of Vihtavuori N-560 (which is a tick faster than N-565) with the 250 gr. Grand Slam. Then a maximum load of 89 for 2877 fps.
Any thoughts?
41
The new Speer book shows a starting load of 85.0 grains of Vihtavuori N-560 (which is a tick faster than N-565) with the 250 gr. Grand Slam. Then a maximum load of 89 for 2877 fps.
Any thoughts?
41