Can you guys tell me what cartridges are based on the 416 Rigby case besides the 338 Lapua, 450 Rigby, 470 Mbogo and 450 Dakota?

.460 Weatherby; .416 Weatherby; .378 Weatherby

Buliwyf, The weatherby case line all have belts while the rigby doesn't. Besides the belt the cases are practialy identically.

Bulldog, I think RIP is working on a 500 version. A 308 version would be the brother of the 30-378 wby, as the Lapua is the brother of the 338-378 wby (although with better brass). I have a 358-378 and you could certailny do the same on the Rigby case.

Other than the origional 416 Rigby, the Lapua and the 450 Rigby the others are all a wildcater play thing although the 470 Mbogo is close to being in that catagory as headstamped brass is available.

510 Wells Express and Neal Shirley's 550 Magnum with the belt, ,my 510KX ( Wells without the irritating belt).

Rich
DRSS

30x338 lapua, 338 lapua, 30-378, 338-378, 35-378, 378, 416 rigby/416 weatherby, 450 rigby/460 weatherby, (there's a .458 shorthened), 470 mbog0, 475 am, 500 ar, 500a2, 510 wells, 500 KX, 500 whisper (i think), 530 magnum (a woodleigh product) 550 express, 550 magnum,...

that is, with and without a belt

jeffe

quote:

Originally posted by jeffeosso:


that is, with and without a belt

jeffe

At least if you add the .495 and .375 A-2!
And how about that .408 chey-tac?

I didn't see it above, but maybe I missed it.

Don't forget Art Alphins 338 Excaliber and 300 Pegasus!

quote:

Originally posted by Buliwyf:
.460 Weatherby; .416 Weatherby; .378 Weatherby

As fritz454 stated,in addition,the Wby cases all of them,in there design of the bottle neck was taken off of the 7x61 Sharpe and Harp cartridge,more than of any other.

quote:

7x61 Sharpe and Harp cartridge,more than of any other.

The 7x61 (always felt if was the perfect capacity for the 7mm) is a .532 dia head. Or do you mean the normal .532 mags started with the 7x61

The bottle neck design of the 7x61S&H,that was popular in the Schultz and Larsen firearms. The magnum belted cartridges in the US were first introduced in 1925 and it was the 300H&H,of british design.

J/

Hi, John. Yep, I am still plodding along. The dies are cast.

The ".300 Lapua Magnum" has a 25 degree shoulder instead of the 20 degree shoulder of its parent ".338 Lapua Magnum." Reamers are available from the "Dave's," and reloading dies from RCBS. Lapua publishes data in their manual and makes brass for it occasionally, with proper headstamp.

Both are identical to the .416 Rigby from rim to where the .338 LM shoulder starts. Max brass specs and manufacturing tolerances exist for variations of a few thousandths of an inch, but this is of no significance in practice, in distinguishing the Lapua Magnums from the grandparent .416 Rigby case head and body. Just shoulder and case length differences, same body taper.

The 500 Mbogo is a shameless neckup of the 470 Mbogo, differing only in that the 500 Mbogo allows the .416 Rigby basic case to be lengthened to a full 3 inches.

If anyone objects to the name, it could instead be called the "500 Rigby 3-Inch," or maybe even more distinctively, the "500 Mbogo 3-Inch."

The .395 Tatanka is simply the .416 Rigby necked down to .395, but with the Rigby 45 degree shoulder changed to 20 degrees starting at the same point as the .416 Rigby shoulder starts. It is thus like a .395/.338 Lapua Long Magnum (2.900" instead of 2.724" brass length). AKA, the "Forty-Double-Ought-Seven." I love saying that.

Now we know that the .416 Ruger of 1697 or 1997, is simply the .416 Rigby with a 30 degree shoulder. An improvement IMHO.

The .378 Weatherby started the "belted Rigby" scheme, but that case is really too different in details to be considered a direct offspring of the .416 Rigby. Close, but no cigar. You can turn the belts off and blow them back out to the .416 Rigby head size, but the rim is still rebated by about 0.011" over what the Rigby rim should be, in max specs for both.

450 Dakota? Yep, that is close enough to be considered a direct descendant of the .416 Rigby.

Lazzeroni's: Nope. New case. Rim and base are .577" with no rebate. It is a smaller case head than the .416 Rigby.

A .378 Weatherby with the belt turned off is closer to the Lazzeroni than it is to a Rigby.

Blow the body taper out of the .416 Rigby and you will have a larger case than any of the Lazzeroni or big Weatherby cartridges, even more so if you then lengthen it to greater than the 2.900" limit, by using the longer Rigby basic cylindrical brass.

Witness: the 470 Mbogo (2.945") and "500 Mbogo 3-Inch."

quote:

Originally posted by ALF:
Just a correction on belted cartridges:

Though we hail H&H for this invention the first belted cartridge was in fact an American design from many many years before.

The famous American industrialist Sylvester Roper who designed the first belted cartridge in the 1800's ( 1886) ?

The cartridge



The rifle:



As to the Rigby case as parent it is quite popular as basis for a host of home grown 450 cal big bores of all lengths going by any number of interesting names. Some developed parallel to some proprietary rounds when the various founders did not know the other already existed.

Most interesting for sure,thank you for posting this,its nice to learn something every day!!!!!

[/QUOTE]
At least if you add the .495 and .375 A-2!
And how about that .408 chey-tac?[/QUOTE]

The parent case for the 408 Chey-Tac is the 505 Gibbs.

quote:

Originally posted by Jim White:

quote:

originally posted by Bent Fossdal:

And how about that .408 chey-tac?

The parent case for the 408 Chey-Tac is the 505 Gibbs.

Good thing I asked "How about"!!