I load 223 with 25gr of H335 using 55 gr Cam Pro bullets with good results. Works good with Berrys and Hornady bullets too
They are used in all my semi auto 223 rifles
I load 25.0 gr H335 behind the Hornady 55gr SP Varmint, it's very accurate and runs right on 3100 FPS out of my CZ 527, I have the last 200 loaded now and am switching over to the 53gr Vmax as I was just using up a supply of the 55gr that I had kicking around.
Thanks guys for all the info, I think I will give H-335 a try.
What kind of accuracy do you get with those 55s and do you find 25.0 is the max?