I must assume someone has already created a "375 Magnum" wildcat, based on the 375 Win case, to be used in revolvers.
So, what can you share about this one?
Who does the conversions?
What was the cost of conversion?
Loading dies, load info?
What bullet weights do you use?
What velocities?
What is your reasoning why this one isn't a factory cartridge by now?
It stands to reason this one might make for a nifty revolver, where the recoil would be less then the 41/44/45's, and more powerful then the 357. Thanks. ~~~Suluuq

The cartridge you discuss is called the .375 Supermag. It was chambered in the Dan Wesson and custom Seville revolvers back in the late 80's to early 90's as best I can remember. It is a cut down .375 Win. There was some commercial brass made, but I do not remember the manufacturer. One of my friends has one. It uses the Hornady 220 FP bullets loaded to velocities between 1550 and 1700 fps. The powders of choice are 296/H-110, 2400, IMR-4227. Basically all the straight wall case powders.

It was dropped due to lack of sales.

Hope this helps.

[ 06-28-2003, 16:21: Message edited by: MS Hitman ]

Yes, I do recall the 375 Super Mag, but I was looking into a "standard" length mag cartridge. Thanks for the responce. ~~~Suluuq

Rusty Gunn,
Yes, I do recall the 375 Super Mag, but I was looking into a "standard" length mag cartridge. Thanks for the responce. ~~~Suluuq[/QUOTE]

Why not choosing : .454 Casull,.475 Linebaugh or .500 Linebaugh.

All 3 are standard magnum cartridges can be chambered in a standard frame revolver.

A standard length cartridge is of little or no use actually. The pressures one would have to use to drive the bullet may exceed what is safe or sane. The .45 Colt throws heavier bullets at lower pressures than does the .44 Mag. The same most likely can be said for the relationship between the .44 Mag and a .375 Mag.

A guy by the name of Garth Huff makes/made what he calls the "375 SSM" (375 short supermag_...... it is based on a 44 mag case and is basically a 357 Bain and Davis necked up to 375. I had a Dan Wesson in 375 SuperMag and was looking for cast bullets to use in it. Garth had designed a bullet mould that cast proper bullets for a 375 revolver (NEI "Huff" bullet), I visited with him about the bullets and he sent me some samples and a dummy round of his 375SSM. According to him, his revolver conversions (Ruger single action) were making more velocity than my 375 SuperMag data showed!

I still have his contact info.....send me a PM if you want it.....

Kelly Brost of Cast Performance Bullets has one of Huff's 375 SSM's. I've handled the gun, but haven't shot it. If you're interested in details, drop him an email or give him a call at his shop. www.castperformance.com

[ 06-30-2003, 05:25: Message edited by: Cannon ]

I built my .375 Atomic back in '97 using .30-30 brass. Similar to some of the other .375" revolver wildcats.....nonetheless, an article is posted to my website to include case dimensions and performance figures.

Lee Martin
www.singleactions.com

Lee, you build some great stuff. I wish you would go professional, I'd send you my stuff to work on. Since you guys build your own chamber reamers, would you consider makeing one or two to sell?

Glenn
idahobronco@aol.com