My Model 70 pre-64 likes 115gr Nosler partitions, second is 110gr Accubonds. I get over 3100 fps with several powders all slow burning. RL23,
Norma MRP, RL26, all gave over 3100 fps. Plus good accuracy . RL22 will get you over 3000fps. I,m sure there are others. My model has a fast barrel
buy the way.
I tried RL-26 in my Roberts, burned dirty, left granules of unburned powder in the chamber, couldn't chamber the next round. Shook'em out, chambered easily.
I think it's too slow to be optimal for that round.
H-100V is the fastest Roberts powder, IME.
H-4350 works great with heavies, just slower.
DF
