Well I finally got to shoot some of my 158 gr. JSP's over 10.0 grains of Blu Dot. Yeah, they put out some impressive muzzle flash and wasn't very consistently accurate. I was actually shooting better groups at 25 yards with my Kimber 1911. So, in summary, fun to shoot but not the most accurate load, for sure. Hmm...now I need to try some lighter stuff, I guess.
Oh, to Franske: yeah, I remember when I loaded H110 there was just barely enough room left to seat the bullet. Your OAL sound VERY close to the absolute maximum. I measured the cylinder on my M327 and its only 1.580 or so. Have you tried your loads in a revolver?