The reason 45acp was designed with large primers was because at the time pistol powder wasnt easy to ignite in a case the size of the 45acp.
Small modern pistol primers have enough heat generation to ignite pistol powder that federal uses. So its cheaper for them to streamline and use the smaller primers.
I just segragate out the small primer cases from range pickups and take those on my trips to texas and leave em where i shoot em. Or use em for trade fodder
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
"I crapped my pants to avoid the draft!!" -Ted Nugent