HK P30 9mm

[Blkpwdrbuff]

I am getting ready to start loading for a HK P30 9mm.
I noticed that it has polygonal rifling.
Has anyone had any experience loading these?
I want to load the Lee 120 TC (not the tumble lube style) in this.
I would appreciate any information you guys can give me.

Thanks,
Blkpwdrbuff:castmine:

[NickSS]

I do not own your pistol but I do have a Baby eagle in 9mm that has polygonal rifling. I have tried the same bullet in that pistol and got 35 yard groups in the same size range I got with Winchester bulk packs of hard ball. My load was 3,8 gr of Red Dot.