As SaltyDog said, it won't make much difference at "normal" handgun distances (5-25 yards). If you are hitting near center at 9 yards, you should still be close (perhaps a bit high) at 20-25 yards.
Originally Posted by 123Slickster
Farther than 25 yards, most non-competitive-shooting-folks' shot groups spread out so wide that it is difficult to tell exactly where the center of the group is, and so, where the gun is hitting (on average).
I've shot my 9mm Glocks out to 100 yards on paper, and the shots would still stay on the body of a full-size silhouette target with a neck or head aiming point (depends on the load), IF the shooter was up to the challenge of executing the fundamentals properly for every single shot.
The best way to find out where your gun is shooting at extended distances is to put up a target at longer range, and shoot! Half the fun of shooting is to try new things, and challenging yourself to constantly improve. I tell folks if it's getting too easy, try shooting faster, her, or at smaller targets. When you get to the point where you can draw from a holster and smack an aspirin tablet at 50 yards, in less than a half-second, give me a call. I'll come visit, and you can teach ME to do it!
"Placement is power" -- seen in an article by Stephen A. Camp
(RIP, Mr. Camp; you will be remembered, and missed)