I have fired about 150 rounds through the Gemini Customs SP101 so far...
I was at a sand pit with cans, clay pigeons, and steel silhouettes, so am not sure of my groupings.......but can say that at 14 yds and less, the SP was knocking down what I pointed it at!
I fired mostly 158gr 357 magnum rounds through it.....which sting the hand a bit, but are certainly workable.
The .38+P (158gr) rounds that I fired were much more pleasant, but I prefer to train and carry with 357 magnum rounds.
In spite of a commonly held belief that 357 is "wasted" in a short barrel, or that the flash and report will render the shooter ineffective.....I like the 357 mag for self defense.
With 135gr Speer Gold Dot short barrel loadings, I can get all 5 shots into a pie plate within 3 seconds from 7 yds away. (while moving laterally or backward, after drawing from under my concealment garment)
I train and train some more.....and more, with my carry snubs.
The Gemini work that makes shooting easier is the smooooooth trigger pull, chamfered cylinders (quicker reloading), melt job (easier draw) and big ol' gold bead front sight. Accuracy might be enhanced by the attention given to the cylinder lockup and dimension between the forcing cone and cylinder?
I have owned factory standard SP101's before, and they are full of sharp edges and poor sights.
When I get to a range with target frames.....I will give a range report regarding groupings and accuracy. For now, suffice to say that this Ruger is carried with my daily, and will see thousands of rounds before it's done.