[rkassl]

I purchased my G17 new in May this year from a very respectable gun shop. My only previous training was in the Army with a .45cal. I am not an expert at all. After about 200 rounds at a maximum distance of 15 meters seemed to be biased to the left. I took the G17 back with my targets and the owner agreed so he moved the rear sight to the right. I left and fired another 100 rounds with no change. Took it back once again and he fired the G17 in the range and confirmed that the pistol was shooting to the left. He adjusted the rear sight all the way to the right almost out of the channel. I left and shot another 100 or so rounds from between 5 and 15 meters and it may have been a little better. I called Glock customer and they really never have seen the rear site moved over so far to the right. They recommended me return it to Georgia for evaluation. I am lost, what should I do and has anyone ever seen my situation?

 

[JR]

I am willing to bet you are using TOO MUCH trigger finger. This will usually cause you to pull your shots low left but left alone is still a possibility. Try using the pad of your trigger finger centered on the trigger. Make sure the trigger is less than half way between the tip of the finger and the knuckle.
Another way to confirm trigger control issues is to simply hand the offending gun off to another knowledgeable shooter and have him group a few rounds. I cant tell you how many times a customer has passed me a gun that supposedly cant shoot a group and I have ripped the 10x ring right out of the target, right before their eyes.