If you are gonna do it you pretty much have to load your own. You have to chrono your loads and get to where you can load very consistently. Not just powder measures but crimp pressure or no crimp. Measure case volumes and reject anything out of defined limits. It becomes an obsession. Our but a Barrett and shoot .50 BMG. Then 1,000 yards is like 100 with a .22 I guess.
or buy a Barret... Stupid Ipad spellchecker again.
BUMP