S&W CS9
S&W CS9
However, the most accurate pistol I ever owned was a Llama Omni .45
I could shoot groups of almost an inch from 25 yards...
Once I bet a friend if we both shot at edge on playing cards from 15 yards distance, I could cut more in two than he could with his 45 Long Colt Single Action.
We both fire at a full deck each. He quit after hitting only 4 of the first 20. I finished out cutting in two 46 of 52 cards...
I finally shot the old Omni out and since it had been discontinued by Llama, parts were near impossible to find. I finally retired it by parting it out on eBay. I still have the frame somewhere within a box in my Fibber McGee closet...
And before you ask... 
my best full-rip group with Old Tommy was 31 of 50 in the chest area of a silhouette target at 25 yards.