I buying either a Glock 34 or 35, and then am going to customize it to the hilt for a range gun. The sole purpose of this gun is for having fun at the range and accuracy. So my question is:which caliber is more accurate 9mm or 40sw. I know I can get some $1,500 Kimber or something like that, that will proabably be more accurate, but I am set on building the Glock. Is there an accuracy difference in the 2 rounds? Any one have experience with this? Thanks for your time, this forum has been a tremendous help to me and my hobby. Wanna kill these ads? We can help!