I agree with comments above. In regards to accuracy, the shooter is at least as important a factor (usually more so) than the gun. I give a real-life example:
At our local rifle range, after my friends and I work to get 1 inch groups in paper at 100 yds with our rifles, we have fun shooting at the 18 inch steel gong at 300 yds. Most days, we have no problem hitting the gong with our rifles, even with iron sights. So we felt pretty good about our accuracy, until one day about a month ago .. when a young man, from a standing position, hit the 300 yd gong easily with his Ruger .44 magnum revolver! He did not even seem surprised. So, I just had to ask him how he achieved that level of accuracy. He casually replied: "I've been practicing shooting golf balls at 100 yds with this revolver for a couple of years .. and now I can hit 8 out of 10".