I've been shooting the .257R. I had read that the Roberts often performs best with 100 gr. bullets. I tried the 100 gr NPT and it shot OK, around an inch or better. The 117 SST and 115 NPT were pretty good.
The winner was the 115 NBT. With .02" jump and at around 2,900 fps, two loads were stand outs:
115 NBT, 44 gr. H-4350, three shot group, .357"
115 NBT, 45 gr. H-414, three into .68".
I'm going to try more of the H-4350 load, clock it with 5 shot groups.
I like this gun. It will bust some WT's this Fall, maybe an unlucky hog or two.
DF
Those 4350 loads are quite a bit stouter than what Nosler calls max. How did you arrive at that charge?
