I just ordered the EGW die to see how it will do, I don't have a Glock, but an MP40 and a Uzi will give you that same bulge..the MP40 from a large chamber and the UZI from it's advanced firing system that actually fires the round a few milliseconds before it's fully chambered.......slows down the cyclic rate. I currently have to segregate the subgun brass from the regular pistol ammo.hope this works.