RE: Need help with new 300 ultra mag
Ok, taw, try that load from Mossy. I gave it to him and it shoots great in my two 300RUM's and Mossys. Seems to be a very dynamic load.
I also have wonderful luck with 89-91gr of Re25 and 180 Barnes TSX.
Lastly for a long distance target load, I shoot 96gr of Retumbo and 190gr Sierra Matchking.
All of these with 215M primer. Remember COL can make a big difference with Barnes bullets. My COL runs anywhere from 3.59" - 3.635". My target load has a COL of 3.68".