Powder choice, bullet, and group size.

[FEENIX]

No I didn't. With the mag length limit I just set it to 2.800. I guess for info sake I need to see how far the jump is.

My .300 WSM also has a mag length, but I wanted to shoot 215 Berger. As previously noted, I prefer around .020" off the lands. However, I ended up .080" off the lands to find the best compromise of velocity, accuracy, and mag limitation.

 

[skipglo]

I would ditch the powder, keep the bullet and try H4350.

THIS^^^