Natchez and powder valley is where I get most of my supplies. Are you reloading for your Glock? If so, remember to stick with jacketed or plated bullets unless you change to an aftermarket barrel. I loaded a lot of plated bullets before I started using an auto progressive press. On my progressive I had a little trouble with the plated bullets deforming slightly when seating. Jacketed bullets seem to seat without a problem. I like to buy jacketed bullets directly from Montana Gold.
Experience hath shewn, that mankind are more disposed to suffer, while evils are sufferable, than to right themselves by abolishing the forms to which they are accustomed.