As Ken Howell states on page 347 of "The Book":

"Turn belt off .460 Weatherby Magnum or .378 Weatherby Magnum brass. Anneal neck, shoulder, and upper body. Form and trim in RCBS form and trim dies. Ream inside neck, in RCBS neck-ream die. Deburr."

Thus to make the .423 Van Horn Nitro in the days when .416 Rigby brass was rare.

The .423 VHN case is 2.575" long.

Anybody seen a .423 Dakota-Lapua? It was supposedly released at Shot Show 2006. Is it really only 2.5" long?

Should be taking the world by storm any day now ...

What goes around, comes around.....

quote:

Originally posted by husky:







Husky

Anyway, in his book, The Handloaders manual to cartridge conversions,John J. Donnelly claims that the .423 vanHorn was made from .404 Jeffery brass?

What is correct?

Bent,
Ja, been hearing about the .404 Schuler for several years, Alf and others have posted on it before. Is that from the 1920's?

That is supposedly a Rigby case blown out and necked to .423(10.75mm) with a rebated rim, and shortened to 70mm, right? So that would be a 10.75x70mm.

Rigby brass length is 73.66mm or thereabouts.

The metric designation for the Rigby is 10.5x73mm, right?

I am trying to verify if the .423 Dakota-Lapua is really only 2.5" long (63.5mm), and whether Dakota has to pay royalties to Rick Jamison.

Hey, my .423/.338 Lapua Magnum is a 10.75x69mm. Rick Jamison should leave me alone.

Well!

My 10.75x69mm (.427 Lapua Kifaru was pet name from HA!/DOA parody of Dakota Arms) is very similar to the .404 Schuler. I had never given that a thought previously.

I do have more body taper, and no rebate. Mine is superior to the .404 Shuler, even though one silly millimeter shorter.

Apparently the the .423 Van Horn is a different cartridge that has 2.845" long brass based on the .404 Jeffery. Thanks for pointing that out.

The .423 Van Horn NITRO is a different cartridge, it would seem, closer to the .423 Dakota-Lapua.

Gil Van Horn was prolific, eh?

RIP,
I order to confuse things even more. The .338 Lapua was developed by the help of Norma and N orma are developing very much on order by Dakota...

It's a small world...

Husky

Finland, Sweden, Norway, all the same to me.
Thanks for the good Lapua brass, to whomever Scandinavians/Vikings.

.

Alf,
Thanks for that info.
That is some wild and crazy velocity with .423/400gr bullets, even for a ".404 Jeffery Improved."
Yes, an oxymoron.