Just try Conley.They have already loaded ammo for the 375Win.Here are some other hot loads I use in my Ruger #3,Savage M99A,Marlin M375 and Win M94 XTR.Expect a 50fps + loss in Win and Marlin,and be careful with spitzer bullets.Also the Ruger and Savage allow you to go over COL of 2.56,without getting in the rifling.In heavier bullets(spitzers) powder must be reduced to clear COL for Win and Marlin.Dutch4122 said:Does anybody have experience with the Barnes .375 255 grn F/N and AA-1680 powder. I'm looking for a good charge to start with for working up a load with this bullet.
I have in the past used 31.0grs of AA1680 behind a 250grFNGC for alittle over 2,000fps.Accurate lists a load for 1680 with 28.0grs for 1850fps at 33,600cup and COL of 2.40 with 250gr.Way below 52,000cup and COL 2.56 for 375win.So you have plenty of room to work up.Good Luck!Dutch4122 said:Enforcer-
Thanks, I'll check out Conley. I have a Winchester M-94 XTR that I'll be working with this summer and noticed that Barnes doesn't list AA-1680 in their manual. I was hoping that somebody else had tried that powder with the Barrnes 255 Grn F/P "O."