Re: Website offers bullet test load packs
"Besides, if we know what the optimal charge weight for a 160 grain bullet is then wouldnt a 5 shot group be enough to tell if they will work. Sort of like the Federal premium match grade ammo works so well in so many guns. This is the crux of finding the optimum load isn't it?"
That's basically true, but to be on the safe side you'd have to work up to the charge with the bullet in question. Some bullets will have a longer bearing surface (more of the jacket is touching the bore), and some will have harder jackets which could run the pressure up a bit. But if the bearing surfaces are the same, or very close, and the jacket hardnesses are comparable, the same powder charge will often work fine for like bullets...