Originally Posted by roninflag
interesting. i have loaded for a number of 22-250s. in all cases they shot the 40 to 63 grain bullets i tried real well. barrel quality is a limiting factor .
I have three 14 twist barrels in various 22 centerfires, and another three in 12 twist. None will shoot anything above 60 grains with anykind of decient groups sizes. I can get a 60 grain FBHP to shoot .60" groups in a 12 twist barrel. The others shoot around one inch groups at best. Yet the Hornaday 55 grain Vmax will shoot .45" groups in a 14 twist Remington, and shoot 33" groups in a 12 twist Savage. The 55 grain Sierra #1365 will shoot very low threes and mid twos in the same three Savages. In my opinion a 14 twist is about maxed out with a .25 B/C and the 12 twist will handle most anything up to about .275 B/C. A ten twist will do a .31 to .33 B/C in .223 caliber bullets.
Speer sells a 62 grain BTSP that has a .307 B/C, and they make a note that it's not recommended for 12 twist barrels, let alone a 14 twist barrel. But a 60 grain bullet with a B/C that's around .26 ought to work fairly well (getting right on the ragged edge).