H335 works well for the Sierra and FTX, but you may lose a few fps.
Just tried H2005 carbine bullets with Unique. Good practice round. No recoil and at 50 yds, shoot 1.5 " group with 20 mph tail wind and just a front bag. Groupings with FTX and Sierra were about the same, the same day. I was tired after 200 rnds of 40.