Fully formed dummies or ammo will not be available until there is a rifle chambered for the 666TH and some bullets for it.

Here are the CH4D dies Mad Mac sent to me: A Sizer-decapper FL die, two tapered case expanders, a seater-crimper with cavernous nose seater plug, and an unmarked die I assume may be used with the expander plugs, as may the FL die.


Here is the press:





666TH versus 50BMG case mouth comparison:



Max brass length of the 50BMG is 3.910".
Max brass length of the 666TH is 3.750".

Necking a 3.900" 50BMG up to .666" causes it to shorten to about 3.810".

Fireforming it will cause it to shorten a little more, when the shoulder is sharpened from 15 degrees to 35 degrees and blown out from .714" to .784".

Simply firing a 50BMG cartridge in a rifle chambered for the 666TH likely will produce a near perfect length case for the 666TH.

Pretty good work on the design, I reckon, for utilizing 50BMG brass to accept as big a bullet as easily practical on the 50BMG ... whenever .666 bullets and barrels are available.

A .666 trimmer pilot for the Forster case trimmer, or a trim die is still needed, if this cartridge becones a reality. Are there any 700 NE trimmer pilots to be turned down to just under .666? I doubt it.

About the dies by CH4D: They seem to be good quality, no boogered threads, they all screw into the AmmoMaster easily and. No boogers on the dies at all.

The tapered expanders are a two-step neck up from .510 to about .620 then to .666. It does require a good lube inside the case neck and significant force on the operating lever of the press for the second step. The first step was easy.

A new cartridge for devil hunting?

Excellent Work RIP!!

What is the O.D. on the neck?

At the mouth? And the shoulder?

Trim before fire forming or not depending on the case mouth thickness. RGB may have some input here since he's done something similar.

My shoulder took one look at your case and immediately PAIN shot through it. On this one, I think I'll have to pass. Yep, pure wimp on this one.

You've probably taken more abuse on blind dates Max!!

Mad Mac,
This is done with "TW4" headstamped milsurp 50BMG brass, once fired, 50BMG case measured as fireformed, not resized:

............50BMG....................666TH
neck diam: 0.563" ............... 0.701"
shld diam: 0.714" ............... 0.714"
neck wall: 0.021" ............... 0.018"

Your cartridge drawing shows a shoulder diameter of 0.784": That will take some blowing out and then the shoulder on the 666TH will be sharp and very adequate.

Your cartridge drawing shows a case neck diameter neck-1 = 0.710" and neck-2 = 0.706" maximum.

I would say you got everything right there. Milsurp brass will work well if you get a reamer done to fit your cartridge drawing.

This is a DGR after all, and a little slop is good. When facing a devil with a silver bullet, you don't want a tight neck.

I'll take care of the reamer and bullets....

Who's making the barrels?

McGowen did not bite at the first public baiting on the Gunsmithing Forum.

Baby "666" Ruth candy bar floating in the swimming pool? Too spooky? I'll call McGowen Precision Barrels, LLC and see if my favorite barrel company dares.

If they don't want to do it, it is back in your court.

It would be nice to have someone interested in it besides me. Max has bailed already.

I believe RGB expressed interest and there are a couple other guys who wish to remain nameless for fear of an official Church Exorcism. If McGowen can't/won't do it I got it covered.

Mad Mac, repeat (spell) after me: M-c-G-o-w-e-n
Correction on the shoulder angle to 33 degrees, or typo on AmmoGuide? First drawing I saw on the 666TH was 35 degrees.



For comparison from COTW 11th Ed., the 50 BMG parent case:

Your drawing is correct - the Ammoguide graphic is a software generated angle.

O.K., 35 degrees.

Barrel TWIST rate? That 1:10" must be a typo too.
1:15"
1:16"
1:20"

Gee, decisions, decisions ... anybody else want a vote on that?

20 is plenty...but it could be a little tighter.

I would vote for a "Sweet Sixteen" TWIST for the Sixty-Naught-Nine.

Works for me...

Regarding the trimmer - RIP-a-gram the desired part and I'll see about making a few of them.

Regarding the trimmer: The cutter on the Forster ain't big enough even if a pilot was available, so forget that idea.

A trim die and file would be the simplest method, to square the case mouths and uniform the brass length.

My chamfer and deburr tool for the 50BMG is big enough to do the insides of the 666TH case mouths, but it won't reach for the outside chamfer-deburr of the case mouth.

I think I can come up with something...

The outside chamfer-deburr could be easily done by hand with a file or stone.

The Lyman 50BMG hand tool works to chamfer-deburr the inside case mouth.

Trim die, file, and a Lyman or other 50BMG chamfer-deburr tool will do it most simply, for those without lathes and machinist capabilities.

How much does a set of .666 Teufel Hunter dies cost from CH4D without the titanium-nitride gilding of the lilly?

With the taper plugs and without the TiN I think around $500 but I'd have to talk to Dave. He has an uncoated set on the shelf as he made two complete sets.

Does the handle come off the shaft on the Forster BMG case trimmer?

Is that a snap ring that keeps the shaft from sliding out of the carrier?

Just FYI

CH makes a decent 50 BMG case trimmer.

I bet Dave could make a new pilot/shaft/cutter combo for his trimmer. I'll check it out.

CH4D trimmer with proper pilot and cutter is a great idea.

Here is what the Forster trimmer for 50 BMG looks like and why it wont work: The cutter is built integral to the drive shaft and is too small.

That is just a little rubber O-ring in a groove to prevent the shaft from coming out when withdrawn, just a reminder to remove the O-ring if you want to remove the entire shaft. It is easily removed and then the cutter shaft slides out easily. The crank handle on the shaft screws off counterclockwise. Hank cranking clockwise keeps it tight.

One could make a new shaft with an enlarged cutter and it would slide in with the crank removed. And then a pilot of about .663" diameter would need to be fitted, so it would slide easily into the sized brass case mouth.

Great photos!

So a new shaft with replaceable cutter inserts could be made with a larger than shaft diameter business end - then loaded into the carrier from the inboard side. No need for the separate pilot or O-Ring.

If you get really bored you could remove the shaft and draw it...I could then draw a new shaft and make a couple this week. May be better to have a retrofittable part for a commonly available trimmer than have to buy a new trimmer for one case.

Actually - I could just buy one of these things from Midway and work on it here.

Geez Man! I think you better get one yourself.

Meantime here is a drawing of a combimation pilot and cutter that could be fit into the existing trimmer and work ... if the locking screw will hold it tight enough in the cutter shaft. If it slipped, I reckon degreasing and some epoxy would fix the situation, and could be removed with torch heat, so this is a go, but pretty complex and has to be made of hardened and sharpened steel, to cut brass:

It will be plenty sharp Boss!!

Can the major diameter be any larger or will it interfere with the stand?

quote:

Originally posted by Macifej:
It will be plenty sharp Boss!!

Can the major diameter be any larger or will it interfere with the stand?

Actually I was hoping you would ask about the major diameter. I was making it minimal for no good reason.

It can be bigger and would work better if it was 0.800" diameter ... but you can make it as big as 1.000" diameter and it will work fine with plenty of clearance in the Forster 50BMG trimmer.

The major diameter of the 50BMG cutter is 0.615", and that is the diameter of the drive shaft.

A major diameter of 0.800" to 0.900" for the 666TH cutter should be great.

Note that the Forster pilot for the 50BMG measures 0.507".

That is why I am suggesting 0.663" pilot diameter for the 666TH.

Ok...

Sending you a drawing via e-mail.

Mac,
I think I have taken more abuse from blind dates, but that was in fun. +
This .666 gives me the impression that 'I' would be the one getting F----d when I fired it.
You guys have fun with this and I'll wait until you decide to do a .32ACP necked to .14 caliber...however (wild idea) any thoughts on .423?

quote:

any thoughts on .423

What kind of thoughts??

Salacious ones, naturally!
On a serious note, since the .458 caliber cannot be built using the .375 Ruger case, I was thinking of the largest available caliber to use for an extra barrel on my .395 Max.

Why not make it something no one else has like the .395...say .427"?? Can't recall any .427 caliber chamberings. Either way I got ya covered.

quote:

Originally posted by Macifej:

What kind of thoughts??

Who knows what evil thoughts?
The Shadow Knows!

Max,
You can do a .458 Ruger Max if you want to. It has a better shoulder than the 10.75x68mm Mauser.

Mad Mac,
Dan Wynne at McGowen consulted with the button maker (The Shadow knows!). They scratched their heads and decided that their buttons could not handle a .666-groove/.656-bore.

They referred me to "Half Moon Rifle" in Montana, a cut-rifling maker of barrels, who makes the .475 barrels for Freedom Arms pistols BTW, but the proprietor (Jim Baiar) thought that .475-caliber barrels were as exotic as he wants to get. No dice.

Is the .666-caliber a Baby Ruth candy bar in the swimming pool?

Possible specs:

1.750" barrel shank diameter
.666" grooves
.656" lands
How many grooves? 6 of course?
TWIST: 1:16"

I'll take one of the barrels if you can get them made.

I already have the barrels taken care of RIP!

I'll post the lead time and price in the AM when I get the official quote.

The trimmer/cutter is easier than I thought. I'll make up some of those to coincide with the barrel delivery.

Tom. I'll be working on the reamer.

Sourced a few off the rack inexpensive actions and will post some linkas at some point.

Silver bullet material is on the way.

Blueing specialst already on my list from another project.

Just need to find someone to bed & stock the beast when the time comes.

Mad Mac,
I could bed a barreled McMillan action into a McMillan stock myself. Surely one of my buddy gunsmiths could get an action barreled and some sights installed.

I sure as hell would like to have an oversized Sharps 1874 action to build into a

16.92x95mm Teufel Jaeger
aka
.666 Teufel Hunter (666TH)
aka
.666 Devil Ripper (666DR), the Devil Doctor!

Blackpowder loads would be some impressive fire and brimstone!

I suppose you'll be wanting to cast some hard lead clunkers to go with that BP??

Let me look through the archives here for a drawing of the 1874 action and see how many parts that thing has.....

It is about time someone mass produced a Sharps 1874 suitable for 50BMG.
A one-off has been done and featured in Very High Power, journal of FCSA, years ago.
Forgoing the crescent buttplate for a hydraulic recoil damper and a tank-style muzzle brake and Scout Scope might make sense, the rest could be pure Sharps.

Industrial Modern on both ends and Victorian in the middle...sounds attractive.

You can make yours any way you like RIP but I'm making mine light and portable for field use.

Although not planning to build one of these shoulder relocators, I'm with you in spirit. I would like to shoot one some day.
As for the .458 Ruger, just might have to do that soon...if Ruger doesn't come out with something new.

Save yourself the grief and wait and buy a 458 Lott.

Could just put a .458 Win Mag bbl on the .395. No feeding problems or need to lengthen the magazine.