Yes I am using a 180 gr TSX... The pressures are not "over the top" but neither are they conducive to "long case life".. I found that after I broke my barrel in (it is V-E-R-Y slick) that the TSX groups fantastically but Retumbo powder is dirty like your Hogdons ball powders..At least it is in...
I was going to do a 6Br...Then a 6mm 250 savage Imp (40deg) then another 6Imp... I just want a relatively easy gun to load for w/ H-I-G-H b.c bullets w/o getting extravagent..At one time I was going to build a 6imp neck it to 224 and have a fast twist and shoot 75 gr A-Max's at 3700+ but it will...
I have a custom Sako action 300 rum...I am shooting 100.0 grs of retumbo..I have a PACT PRO chronograph and I have a few ideosychrcies..I have a WELL broken in bbl and the first 2 shot chron @ 3350..as the barrel "dirties-up" it heads toward 3450 fp. where it stays after about 6 shots. I also...
I am considering having a 22-250 AI made up with a 1:8 twist to shoot either Berger 75 gr VLD's or Hornady A-Max.I can find no loading data and would greatly appreciate any info someone might have.....Thanks