Gary Reeder
There have been numerous necked down
Thursday, January 09, 2025, 13:51

cartridges thru the year and most have failed. The 440 Corbon interested me and Kase but when we tried to order one they wouldn't take our order. That was the 50 AE necked down to 44. It was a good idea but like a lot of ideas similar to that it just didn't fly. In the picture the 50 AE on the left and 44 Magnum on the right with the 440 Cor Bon in the middle.

Cor Bon made some ammo and from what I heard it was tried in the Desert Eagle but apparently the pressure was a bit much. Necked down cartridges work thru revolvers if they are designed right but very few have lasted longer than a few weeks, even when promoted by the gun magazines. They were similar to the Short Magnums in that their high pressures killed the cartridge. The more you neck a cartridge down the higher the pressures will be and it doesn't take many people complaining on the internet about the cartridge to kill it.
The 41 Auto Mag and the 357 Auto Mag were examples of this. The Auto Mag was designed to handle high pressure and it was needed when the 357 Auto Mag was developed. Both the 41 and 357 Auto Mags were necked down 44 Auto Mag. I hunted all over for years with my 41 Auto Mag and had really no problems other than very short case life. The 357 Auto Mag had even shorter case life due to the high pressures.
So the mention of necking down a 44 Magnum case to various cartridges has been done and it takes a lot of work to make the brass and then it doesn't last long. So simply said, it's been done and didn't last long. The 41 auto Mag still lives today in the form of the 41 GNR. I copied the idea from Lee Jurras and his 41 auto Mag and substituted the 44 Auto Mag case for the 44 Magnum case and with my normal loads it works perfectly and is a great killing cartridge on animals up to Bison and bull elk size.