For all you .45 ACp revolver fanatics out there (and you know who you are) and for purchasers of the new S&W M22 fixed sight blue steel .45 ACP revolver, primo self-defense ammunition manufacturer Cor-Bon is doing a run of self-defense ammo in .45 AUTO RIM, the rimmed version of the .45 ACP cartridge.
Now, why is this cool?
The function of .45 ARs is to allow you to shoot a .45 ACP revolver without moon clips. The reason it's cool is that, IMHO, sometimes .45 ACPs in moon clips, especially clips that have seen hard use, hang up just the slightest bit, making the trigger pull feel a tiny bit jerky (to be sure, this is worse with some guns than others). For a .45 ACP revolver used for self-defense, I like the first cylinder-full to be .45 ARs, with all subsequent reloads .45 ACP in moon clips. This is the set-up I used to use when I was keeping the Ugliest Gun in the World next to my bed at night. I had .45 AR reloads (230-gr JHPs @ 750 fps) backed up by .45 ACP 230-gr JHPs in moon clips.
Now you can buy the ACPs and matching ARs from Cor-Bon, who make excellent ammo BTW. Thanks to Mike Shovel, the sales manager, for the heads-up!