So I made it to the range with the new to me 300WM and some loads with 180 BTs over charges of H4831SC from 73-75.5. Rifle is a 1980's 700 BDL as it came from Remington with addition of pillars and Devcon.
Anyone care to venture a guess at velocity for 75gr H4831 and 180 BT out of a 24" barrel? In my haste, I left the crono at home and won't be able to get back to the range until after the season.
gzig: I hate to make these wild ass guesses because surer than hell you will run it over a chronograph, I'll be wrong,and look stupid...
But I can't resist cause I love games...
I'll say 2900-2950 fps. Let me know I am now really curious!
Powders for the 300 Win Mag? Years back when I was using a 300 Win Mag a lot for hunting I used IMR4831 in a 24" barreled Krieger M70 (throated long) and it consistently chronographed about 3125 with a 180 gr bullet.
Later in a couple of others I used RL22 which was excellent and got to velocity very quickly with great accuracy. If I were t start over today with a 300 Win Mag and 180-200 gr bullets I would likely reach for H1000. I have been impressed with its consistency and it does not seem to get touchy as you approach top end.
