Re: Best choice for .223 varmint bullet/load
All 2200 is the same. use loads on reloaders nest or on the accurate site listed under "data powders".
You can push the accurate site loads some.
I had best results for SX bullets with 748, YMMV.
Story: One spring I decided to add a half grain to my 748/SX load for more velocity and better splat factor. They shot fine at the range.
Out on the dog town, I was having problems and asked Johhmny Boy to spot for me. He sez "your low, 15 ft ahead of that one". Next shot had 2 impacts, figured out the SX were fragging.
My shells were sitting in the sunlight on the truck bed and were warm whe I put them in the gun.
Put the rounds in the soda cooler an they shot fine.
Those were the days, 1K shots a day, nice big moist 200 yard dogs all over the place, SX bullets at 7 bucks a box........