H335 is the only powder I use for my .223s these days. When I couldn't find any a few years back, I tried some other powders like TAC and BL-C(2). Nothing else gives me the accuracy and velocity. I load it for three .223 rifles, a Ruger #1V, an AR-15 (20" heavy FN barrel), and a Tikka T3. My economy load is a max load of H335 and a 50 gr. Dogtown hollow point. This is sub-moa in all three. I use LC brass for the tikka and AR (full-length sized) and Winchester neck sized brass in the Ruger.
When I want to shoot ground squirrels at long distance, I switch to a 50 gr. Vmax in the Ruger and it is instant death on ground squirrels out to 300 yards as long as the wind isn't crazy. I've used this load in 100+ degree heat for ground squirrels, and in -10 for coyotes. No problems whatsoever.
