He did try different bullets and powder.so some of you think 1 1/2 moa is acceptable? My SU 16 can do better than that .. lol
I’d try some different bullets or powder
IMHO, those rifles with "pencil" barrels aren't intended for shots past 200 meters.
They're for light, stalking rifles, where shots seldom exceed 100 meters.
Every Rem 700 and Rem mod 7 rifle I've kept for my personal use that had factory pencil barrels on them, I usually replaced the barrels with heavier barrels.
After three shots, groups tend to open up more with every shot.
Some of them, with pencil barrels, shoot very well, but it's luck of the draw.
A youth rifle shooting into 1.25 inches with factory ammo, is usually about as good as it gets. IMHO.
OP, with that twist rate, I would stick to flat base bullets, with short ogives.
Cup and core types, loaded at those velocities, will shoot fine, are cheaper, and at those velocities will perform just as well.



















































