I shot a lot of these 140s in my 260 and it took me a slower powder to get it to do its thing. I've been using imr 4831 for nosler bullets in the 7mm and RL 22 for Sierra and Speer from 160 to 175 grain. I really like these eld bullets for uniformity and weight. Older adl with 9.25 twist. Anyone used a good load with these yet. I was out of IMR 4831 but Hornady had a recipe for h4831 sc. I've loaded a few within and am considering some h1000. I've got some IMR 4350 but have never had any luck with it in heavier bullets.
G'day 2guns,
I get good accuracy and velocity with Retumbo
which is AR 2225 here in Australia. I load 73g behind 154 HornadySP flat base or 162 H BTSP, or 160NPT/NAB in Norma cases with either CCI-250, Rem 9 1/2M, or Fed 215 ( it's not fussy which). All shoot MOA or better with a cool barrel, and average 2940 to 2980 f/s out of my 24.5" Bbl. POI doesn't vary much either between the different bullets in my rifle.
If I have a critisism of this powder, it is that I get a lot of black "fouling" out of the barrel after range sessions, but this may be a copper-fouling deterrent residue.
Have loaded up to 74g, but 73 was the most accurate and seems mild. Cases last forever if collet sizing most reloads. I'd recommend working up from 70g as rifles and components differ a lot.
Good luck. Jack