Agree with Dirtfarmer. With heavy bullets I used to use RL22, have replaced it with RL23. Norma MRP is very good.
RL26 has worked good also, heavier bullet the better. My model 70 did 3129 FPS with RL26.and 115gr Partitions.
RL23 did 3129 FPS with 115gr Nosler Partitions
RL17 also did over 3100 FPS with 110gr Accubonds. Had to back load off.
Did you get unburned powder residue with '26 in your Roberts?
I was using heavy bullets and got granules in the chamber such that I couldn't chamber the next round. Once I shook it out, all was good.
Swore off '26 in the Roberts. It's the cat's meow in the 7RM with 160's. I have a big jug and really like it. Just not in the Roberts.
I have Pw Pro 4000 and StaBALL, just haven't tried either in the Roberts. Too many projects, not enough time....
DF
