Out of the Pistols I have and have shot, this is how I would rank them. #1 being the most accurate..
1. CZ 75b 9mm (shot pennies off target frame 1 by 1)
2. CZ 40b 40 S&W
3. Taurus PT945 .45acp
4. Glock 17 9mm
5. Ruger P-89 9mm
6. Kel-Tec P-11 9mm
7. S&W Sigma 9mm (Kept getting hit in face with empty casings,Shot terriblely)
I feel 2 & 3 are out a tie, I shoot well with both pistols.
I shot well with the glock, Believe it or not, I shoot pretty darn straight with the Kel-Tec..