I use 5.3 gr. of Unique under my 115 gr. Berry's bullets and size all of my 9mm loads to 1.14". They run fine through both my P95 and my Hi-Point carbine. I had a bit of a problem early-on with the copper coating wanting to fold up when the bullets were seated, make sure you bell the cases enough so that doesn't happen.
Alliant shows a max of 6.3 grains under a GDHP (a jacketed bullet) so working 10-20% under that number should be fine. I also use
www.handloads.com and
www.reloadammo.com, in addition to the Lee data sheets and powder manufacturers' web sites, to correlate my loads and ensure I'm working with safe combinations.