I've done a few.
500 SOCOM, 475 SOCOM, 458 SOCOM, 44 SOCOM, 10mm SOCOM, 375 SOCOM, 358 SOCOM, 338 SOCOM, 9mm Super, 375 Auto Mag, and 6mm Weatherby RPM. Still waiting on the reamer for the last one.
The 458 SOCOM is arguably the most popular non-SAAMI wildcat of all time. Every wildcat I can think of that was hugely popular, ended up SAAMI certified, except the 458 SOCOM.
Tony Rumore
Tromix
Edited to add: I forgot all about doing a 280 Ackley Long on a Sako AIII action. The 280 Ackely Imp is 30'06 length, but I stretched the case out to .375 H&H length.
I don't ever recall seeing a standard 30'06 size case stretched out to .375 H&H length in any Wildcat....but maybe it's been done, I don't know. Anyway, here is a pic of the Ackley Long on the Left and standard 280 Ackley on the right.
Making those Ackly Long cases was a nightmare. I scrapped a lot of 9.3x74R brass.
When I first posted about it, I got completely crapped on.....but it never made sense to me to have something like a Remington 700 chambered in 30'06, 270, 25-06 etc, when the damn action is long enough to house a .375 H&H length case.
If you're going with a long action, you might as well feed a full length case through it....or better yet, Remington should make a correctly sized 30'06 length action for those cartridges. You know, like Howa.