I have put just about 1,000 rounds through this 9mm SP101 since I got it , and today figured I'd bite the bullet and try some Speer Gold Dot 9mm +P along with some 140 grain S&B and the tried and true 115 gr Winchester Target.
I put an older Gemini? or Dawson patridge front sight on that I had laying around, and I hit the serrated flat part with a Bronze brush to knock the matte finish off. I like it a little bright to pick some light up. It was too dark and was easy to lose .
20 rounds of Gold Dot at 7 yards, they hit a little low, the front sight is regulated for heavier bullets like 147's. I took a knee for the last 5 and the POI dropped. Weird but snubs can be quirky. The Gold Dots were definitely spicy. I'd like to try some Buffalo Bore 147 gr +P+ in this. It was painful blowing about $40 for 25 rounds but I have to make sure the gun doesn't bind up with +P. Next is +P+ when I can find somewhere that has them.
S&B 140gr subsonic hit more or less to POA at 7 yards. I tried Federal 147 gr yesterday with similar results. If I shoot one handed , the POI moves up a little. I don't stress pinpoint accuracy with snubs. I know there are people who shoot 2" at 50 yards with SP101s but for realistic , real world use , for me, I shoot from 0-15 and more so at about 5.
I also tend to sometimes "dip" the muzzle with snubs so there's also that. I'll take what I've been printing so far. I didn't shoot much past 10 today, I worked on reloading with moon clips and I may use this in one of my clubs "pocket pistol/ snub revolver" practical handgun matches
I did a lot of "holster retention " shooting today, also point shooting. Punching out one handed with no use of sights, I was able to score easy hits at 5-7 yards. This is a fightin' gun not a 25 yard Bullseye revolver.
The gun has a hinky chamber that doesn't like slow DA or SA, it has a gag. I've been polishing that ratchet tooth with Mother's and it's been improving. In regular DA it works fine. I don't want to send it back to Ruger and risk it coming back all Munged up in 3 months. I haven't sent a new Ruger back for service in a few years but the Redhawk .45 ACP I sent back for not working right with factory moon clips didn't seem to have anything done to it, so I'll keep massaging this 9mm SP myself. So far so good