I’ve got some SPP brass in .45 ACP and some in 10mm that I keep on hand just in case. I haven’t loaded any yet, but it’s there if I need it. I keep it separate and well marked.
Bullseye shooters have been finding that, with certain loads, the small primer brass can yield slightly tighter 50 yard groups as tested from a Ransom Rest.
I toss all 45acp spp brass in the scrap bucket. Not worth fooling with as I have ample supplies of the original brass.
Interesting. Has anyone figured out or even theorized why that would be the case - or how it works that way?
I find it much easier to work with .45 brass that has the large primer pocket. That size is far more common and .45 brass is not scarce.
Six of one, half dozen of the other. I inspect every case before I reload it so keeping large pistol primed and small pistol primed brass separate is no big deal. There is really nothing to fear from small primed 45 ACP, Browning's ghost ain't gonna haunt you if you use small primers. I don't compete so if there is a difference in performance, it is negligible and not worth bothering and my 3 45 ACP guns can't tell the difference.. I have seen a lot of the "I been usin' large primed 45 ACP brass since 1920 and I ain't gonna change, no matter what!" thinking, which is OK as it's their handloads, their time and their money. Throwing away a 45 ACP cases is like throwing away nickels...
While it's OK to have the option of SPP or LPP, I strongly believe that adhering to a single specified primer size should be a condition of SAAMI approval.
My club is doing a primer order, and the only primer that isn't available for ordering is LPP. Because of that, I am laying in a supply of once fired SPP 45 ACP brass, because I enjoy shooting a 45 and I don't want to get caught without ammo!