Accuracy from a 3-3/4" barrel .45 at 15yds. is a challenge in itself.If you add the slightest flinching or what not it's going to be way off.There are some that can be a crackshot with this gun but I'm still practicing with my 4516-1 and it can get quite frustrating.You have to remember that the .45 round was designed from a 5" barrel.When you shorten a .45 barrel to that extent you lose muzzle velocity ultimately allowing the bullet to drop sooner.Keep practicing,and practicing some more.Longer distances just can't be immediately expected from a close quarters combat weapon.The 4516 is a blast to shoot.Such a short barrel but recoil is laughable because of it's weight and that's a good advantage to have from that barrel length because in time you will be able to follow up shots faster.I have been given a wealth of great knowledge on this forum there are kind souls on here always willing to help anyone out...I love this bar