cabelasken
Well-Known Member
I'm at 57.4gr RL-19 with the 145gr LRX in Hornady brass and a CCI 250, I used a Foster-Manson reamer to cut my chamber. I too am going to try SB6.5 and H4350 - keep us posted on your results please.
SB6.5 is amazing in my 257 AI - replacing RL-17, shooting the 101gr LRX, 110 ELD-X and the 115gr Berger over it. Apologies for shifting off topic a bit.