I'm seriously considering a big bore on the '06 case. I see that CH dies lists a 400 Brown-Whelen as well as 400 Whelen Improveds with 24,28,30 and 40 degree shoulders.Where does the Brown-Whelen fit into here? What's the shoulder angle on the B-W?.,,is the shouder moved ahead?

I suggest you read the chapter on the 400 Whelen in Cartridges of the World. The lack of success of this cartridge would seem to be based primarily on the problem of getting a good shoulder for headspace with this cartridge. Have you considered either a 10.75 X 68mm or a .416 Taylor? While the parent case is not an 06 I think they would both be preferable to a 400 Whelan with a clear advantage to the 416 Taylor which works in a standard length magazine and can be formed from the .458 WinMag.

quote:

Originally posted by rembo:
I'm seriously considering a big bore on the '06 case. I see that CH dies lists a 400 Brown-Whelen as well as 400 Whelen Improveds with 24,28,30 and 40 degree shoulders.Where does the Brown-Whelen fit into here? What's the shoulder angle on the B-W?.,,is the shouder moved ahead?

rembo,

Do a search on that cartridge in our archives. The shoulder was discussed before.

George

The .400 Whelen
Smashing the Headspace Myth!
BY MICHAEL PETROV
http://www.z-hat.com/smashing_the_headspace_myth.htm

An interesting and informative article.

-Bob F.

Bob, thanks for posting that link, excellent information.

For those interested in the .400 Whelen I built a new one and wrote it up as well and would be happy to send a copy of that article via email.

mjpetrov@acsalaska.net

Asside from the PITA of forming brass, and shoulder issue, which can be dealt with, the real problem with the 400 whelen is a case that doesn't have enough capacity for the weight of bullets it holds.

I'd opt for a 416 Taylor or 40 cal varient (411 KDF?) You can form brass by fl sizing 458 win mag, or necking up 338 win mag. You'll have enough capacity to reach the 400 whelen performance, as well as a big enough case to exceed the whelen by 200 fps.

The cost of the project is pretty much the same, and your final product will be much more versatile.

Michael Petrov:

By any chance, did David Christman do any work on your 400? If so, I saw the "makings" in his shop a year or so ago-he said it was a customer in Alaska. Nice!!!

Bob

quote:

Michael Petrov:

By any chance, did David Christman do any work on your 400? If so, I saw the "makings" in his shop a year or so ago-he said it was a customer in Alaska. Nice!!!

Bob

Bob,

When the word got out that I was building a .400 Whelen two friends also had one made at the same time. One of them had his rifle stocked by Mr. Christman and a picture of it is in the second article on the .400. I might add that Mr. Christman did a fine job on it, I stuck mine in an old pre-64 70 stock.

Michael

Have you looked at the 411 Hawk? Very similar to the 400 Whelen.

It is the 9.3x62 case necked up to .411. Shoots a 300 grain bullet at 2500 fps which is enough for me. It is very pleasent to shoot.

Check: Z-Hat.com for the articles with the .411 Hawk and stopping power on big Alaska bears.

The 10.75x68, like the 400 Whelen has hardly any shoulder, but hey thats been a BS myth for many years, it just takes a tad of a shoulder and both work fine, I never had any trouble with either one of them...The 10.75x68 is my latest love. I just finished one on an FN Mauser and its in an old Mauser FN Sako stock right now, but I will custom stock it one day soon, but i couldn't wait to shoot and play with it so the stock has to wait...

I did finish my new 416 Rem. and its at the bluer...the 404 is in progress, so I have my time cut out for me this summer...