GREAT SHOOTING!

The most accurate groups I have shot from Glocks was in G21/LWD barrel. Using H-110/Win. 296 powder pushing my custom 215 WFN bullets.

I believe with a scope it would almost put them all touching @ 50 yds. It will consistently shoot 1.5" and under from kneeling position, which is what I always shoot when accuracy testing as this is almost always possible when hunting.

Even my G27 with comped LWD barrel will shoot under 1" @ 25 yds with the above load using the 155 XTP bullets @ 1390 fps from shorter barrel.
Trigger work makes this kind of accuracy easier but have shot some surprising groups with factory triggers.

I relocate the trigger shoe/trigger bar pin hole, this changes the leverage and greatly reduces pull weight/overtravel.