I have a .260 Rem. Model 16 with the 2nd generation Accustock that is grouping horizontally about 1 1/4" at 100 yds with 5 shots.
Does this throw up any flags as to what could help tighten these groups up? If it shot side to side like it does up and down it would drive nails.
Any ideas?

Forgot to mention, tang is freefloated nicely as is the barrel.