I've had good accuracy and can get good velocity with retumbo with nosler (110 abs and 115 bts) and sierra (117 spbt). My go to load for a while was the sierra 117 with 57 grains retumbo. It was a very mild load and gave me 3075fps with an honest .75 moa out past 600 yards in a 26'' sendero. I just got sick of all the powder fowling I was getting with retumbo.
I got some 115 vlds and tried H-4831sc. I had two 4 shot groups well under an inch at 212 yards with initial load testing. I've been working with the milder of the two 53.5 gr. It held a four shot group at 2.5 inches at 428. I loaded up a bunch of this load and a few at 54.3 which was also promising. I'll get out to the range in the next few days to check them out. Way less powder residue to clean out of my barrel with the H4831sc.
