might also want to try BLC2 and 2015BR. H335 works well, but my best groups in the .223 case family always come from BLC2. Have been wanting to try N133 (think that's it anyway), but seems to be hard to come by when you need it.
One of the things that makes the 223 easy to load for is there are soooooo many powders that work really well for it.
I've got a couple 223's and a 223 Ack. Imp. I pretty much only shoot the 53 V-Max with Benchmark and it has served me very well but H335 is another one of those powders that seems to work very well in just about all 223's. I know a lot of guys that use BL-C2, Win748, Ramshot TAC, and CFE223 is getting used alot, too.
With that bullet, either of those powders, a little testing, and I'm sure you'll be able to settle in on a load rather quickly that'll work well for you.