If I couldn't use range pick ups or "once fired" 9mm brass I'd have very few cases to reload (I have never purchased new 9mm brass and only lately have I purchased any factory 9mm. I got a new 9mm revolver and I bought one box each of 115, 125 and 147 gr loads jes to see how they work in a 2" revolver so I can reload a preferred weight bullet). For me, my first step in reloading is a glance at the case head, a light inspection. Then I clean the brass and look a little closer. By this time I have sorted out any Amerc, Alum., Steel, stepped ID, berdan or any Shell Shock cases. Not much to do reloading wise as it's been raining for a few weeks and I've got a bunch of 9mm handloads so last week got my gallon jug of 9mm cases, unsized, and sized/deprimed several hundred ("busy time" in my shop.). I use my Lee sizing die and I experienced no "depriming problems" and only two "wrong" cases, both 380 ACP. I found a few NATO cases but no difficulty sizing/depriming. I have a habit of glancing at the case every time I pick it up so I find "different" mfgs without a conscious sort. Yesterday I fired about 200+ mixed brass handloads, most purchased once fired and zero problems...
I guess I'm considered a "Brass Whore" as I'll pick up most brass I see, and ony toss damaged brass (except for Amerc which I've found to be inferior). If I don't reload it or have too many already (like ,223/5.56 'cause I no longer have a rifle in that caliber.) I'll give it away. Decrimping military primer crimps is nuttin' but bench time and only needs to be done once. I have waaaay more time for reloading than shooting so busy work in the shop is just fun time. I like reloading...