gun is a bone stock glock 26. reload specs mixed once fired brass cci small rifle primers hornady xtp/hp 115gr 5.0 gr's of titegroup. if it matters i can get OAL of the round. brass was trimmed accordingly. i am aware that 5.0 grains of titegroup is over any published max. the round fires fine in my stock full sized g17. but firing the first round out of my G26 i noted something. near the case mouth, it appears that the case was dragged across the ground. like there is a small mark about a 1/8-1/4inch long starting at the case mouth. what might cause this? my first guess was, since this is a very hot load, and the recoil spring is stock, the slide is light weight, that the recoil is causing the slide to come back at an accelerated rate, clipping the case. ill try and get pictures later. but does this sound like the problem, or has anyone seen this before..