The groups varied by roughly 0.003" per grouping.

by Hoot , Diversityville, Liberal-sota, Tuesday, April 19, 2016, 19:46 (3143 days ago) @ Brian A

Only one of the shortest group fired on the first hit. All of the middle and longest group fired first time. My guess would be that the Glock is at the deep end of the tolerance or maybe over. I need to do some more checking.

Now to sort through the multiple thousands of .380 in the Dungeon...

Thanks Brian!