what is your load with the .260 with 120 speer s.p. I can get my serra 120s to shoot very well but not my speers..

not an uncommon problem. i've always had trouble with speer. not everything, but in general

I haven't tried the Speer, but if it won't shoot o/ H4350 or RL19, it probably won't shoot.

Near max load of RL19 shoots little bug hole groups in my 260. Bullet works great on deer and antelope in the 260.