Modern 10mm revolver round?
- Thread starter SCDL
- Start date
Bottleneck rounds don't do that well in revolvers. Do a little research on a Rem 22 Jet. Interesting idea though, much like the 411 JDJ. - dan
Perhaps if you read his post you would realize that he is cutting it off at the bottom of the neck and won't have a bottlenosed case.
As for SCDL, you haven't provided enough iinformation to provide a meaningful response. Does the .30-30 case end up straight once the .400 bullet is loaded? If so, sounds like you would have a slightly more powerful .41 Magnum. This has probably been done by the IMSHA crowd a decade or two ago. Not sure why.other than being able to use bullets for the .40 S&W. You may have almost duplicated the case capacity of the .38-40?
As for SCDL, you haven't provided enough iinformation to provide a meaningful response. Does the .30-30 case end up straight once the .400 bullet is loaded? If so, sounds like you would have a slightly more powerful .41 Magnum. This has probably been done by the IMSHA crowd a decade or two ago. Not sure why.other than being able to use bullets for the .40 S&W. You may have almost duplicated the case capacity of the .38-40?
Why use a .400 bullet instead of a .410? You'll end up losing both velocity and accuracy.
There are case-mouth-belling dies that help starting a larger bullet in a tighter case.
Of course, the first loads will have to be quite low to compensate for the smaller case volume but once fire-formed, the cases should work. Subject to your revolver accepts the thicker rims.
Do some testing and let us know how long until you get head separation. The 41 RemMag case is .435 at the head while 30-30 is .422 which will definitely shorten the case life.
There are case-mouth-belling dies that help starting a larger bullet in a tighter case.
Of course, the first loads will have to be quite low to compensate for the smaller case volume but once fire-formed, the cases should work. Subject to your revolver accepts the thicker rims.
Do some testing and let us know how long until you get head separation. The 41 RemMag case is .435 at the head while 30-30 is .422 which will definitely shorten the case life.
I'm still rather young, and was not fortunate enough to be born into a firearm owning family. If it has already been done, I'd love to see the results.
Why would a lighter bullet go slower? Or be less accurate, for that matter?
I don't have the dimensions for fired .30-30 brass on-hand, but it should be pretty darn close.
Looking at the neck diameter of .40 S&W, it's pretty much identical to the base diameter of an unfired .30-30 casing. It will probably come down to the thickness of the brass.
There have been at least a couple of .40 revolver cartridges (besides the .38-40 WCF) that preceded the .41 Magnum:
1. The .400 Eimer was made from .401 Winchester Self loading cases for custom Colt SAAs.
2. Herter's sold single action revolvers made by J.P. Sauer chambered for the proprietary .401 PowerMag.
1. The .400 Eimer was made from .401 Winchester Self loading cases for custom Colt SAAs.
2. Herter's sold single action revolvers made by J.P. Sauer chambered for the proprietary .401 PowerMag.
My bad Al. Being a visual guy I was going more by the picture. In any case, with the new info, this sounds like the 414 from Dan Wesson, except for 10mm/40 cal bullets. - dan
