I picked up a Glock 20 last winter and have been working up a load with N320 at 6 grains I am at max load with a 180 grain bullet. The rounds cycle fine but I feel they are quite sluggish compared to factory ammunition I have run through it. I wish I could find some Blue Dot but my searches have come up short. I have CFE pistol on hand as well as Tightgroup. Given those powders would max load with either of them get me close to factory loads. I am not looking for Buffalo Bore performance just a realistic amount of recoil.