I have the glock 21 set up for 45 super with 6" kkm barrel and vortex razor reflex sight. I too am getting 1.5" at 30 yds with 250 wfngc. I also have the glock 20 with 6" kkm barrel and same reflex sight. May be a little tighter group at 30 yds with 200gr wfngc. Hope to get a shot next month.