If you're buying Speer, Winchester or Federal .45 acp ammo, I'd ask to see the primers. Speer doesn't headstamp any revealing information, but Winchester and Federal both show the "NT" on the head.

Last year I sold several thousand of the small primer cases from Alabama to Alaska at 2 cents each plus shipping. I came into those cases from the local police department who did all their qualifications with the frangible/non-toxic ammo.

The listmembers I sold them to couldn't get large pistol primers, but were able to locate small rifle and pistol primers. The ammo was used for plinking and hunting, nothing where precision marksmanship was required.