Hp-38 works well for me.
I use TiteGroup for 9mm.
147gr bullet sitting on 3.4gr.
You can load 2000+ rounds on 1lb of powder... not bad.
Is this a FMJ RN? Also what is your OAL with this load?
While not IGM, I've loaded tens of thousands of 147 jhp zeros (and a few k fmj ball) w/ 3.3-3.4 TG at 1.150"-
3.4 gets 132 PF from G19, 137 from G34, and 134 from Beretta 92.
I load for USPSA, so bullseye accuracy isn't my goal, but it's a very accurate load in many guns. 3" groups from the glock at 25 yds, easy hits on 8" plate at 75.
subsonic and clean through the silencer.
-rvb