The dream is incubating.
It will preoccupy me until it is finished.

For a .395/.338 Lapua Magnum, consider a 340-grain GSC HV, FN, and SP at 2700 fps:

The HV for herd shooting buffalo, or 500 yard plains game and varmints.

The FN for Texas Heart Shots on elephant.

And the 340 grain SP will be a Me-Too 1000 yard match shooter, in a 1:12" twist.

Then maybe one day we'll go on up to a 1:10" twist and a 395-grain bullet of greater than 1.0 BC ... but that might require a necked up .378 Weatherby Improved. Just a stroke of the engraving tool for properly headstamped brass: .398 Weatherby

This greatest new wildcat caliber of the 21rst century definitely deserves a great new action. I am rooting for a stainless Mauser 98 Magnum, and hoping Stuart Satterlee will come to the rescue.

i think the 395 is the goldilocks caliber...

a great d.g. weight to diameter ratio. the 350 gr 375's are too long and the 350 gr 416s suffer from a not so good b.c. soooo a happy middleground is finaly reached with the help of great people!

a 395 340 gr pill at any impact speed above 2300 will be a hammer!

Just remember custom rifles take time, so from scratch has got to take longer yet.
However, I can't think of a better idea.
Good work RIP.

BBUUUUTTTTT!!! the 400 grain has a 366 B.C.!!

quote:

Originally posted by .366torque:
BBUUUUTTTTT!!! the 400 grain has a 366 B.C.!!

the 400 grain would not stop till it hit a 2" thick steel plate....better have a backstop behind that elephant

.366torque,
What the hey then, let's go all the way to 400-grains and do it on a full length .505 Gibbs and beat the .408 Chey-Tac at it's own game, someday ...

Or a less ambitious and much more practical sporting rifle, the .395/470 Mbogo. I could call that the 400 Mbogo to pair with the 500 Mbogo ... speaking of which I will be visiting the gunsmith soon.

Anybody know of a stainless Mauser 98 Magnum?

Similar to a quest for The Holy Grail to find one of those.

quote:

Originally posted by .366torque:
BBUUUUTTTTT!!! the 400 grain has a 366 S.D.!!

Ay carrumba! I meant SD, sectional density! Sorry folks.

eventualy a 300, 340 and 400 will be logical steps...

http://www.satterleearms.com/index.htm



they sure are pretty!

quote:

Originally posted by boom stick:
eventualy a 300, 340 and 400 will be logical steps...

That would definitely be a great lineup of .395 caliber bullet weights. SD's: .275, .311, .366

Looks like Stuart has some stainless in his shop now and then:

A stainless M98M with square bridges machined for Talley rings and a 3-position wing safety similar to this would be very useful:


For .395/.338 Lapua AKA .395 Tatanka
and
for .395/470 Mbogo AKA 400 Mbogo

Both the 400 Mbogo and 500 Mbogo will have 3.000" Case length and full caliber length necks. Eventually some custom brass with just "Mbogo" as headstamp will be had. That can be used to engrave "400," "470," or "500" on the head to complete the headstamp.

The 470 Mbogo case body is the most you can do with a .416 Rigby case body. It is the sensible maximum for any bolt action, as it does not create the multiple problems of the .505 Gibbs case:
1) bolt thrust/55K pressure limit
2) skeletonization of the .700" diameter bolt face
3) more bulbous magazine requirements

Ought to be able to load the .395 Tatanka and 400 Mbogo to about 65K psi, and see what the velocities are with 340-grainers and 400-grainers, eh?


RIPoff's forever.

BS -- how's the 470 AR coming? The rebarreled BLR?

You lack focus young weedhopper.

charles...

posted earlier today...

quote:
Originally posted by GeorgeS:
While he is an enthusiastic, even rabid, booster of big bore cartridges, I think boom stick's only big bores are Marlins and/or Handi-Rifles, which would preclude his having a 500 A-Square.

bs, did you ever build that .470AR?

George

boom stick...

guilty...

i will be using my christmas bonus to finaly buy the donor action to finish the 470 project

next project the 395 boom stick (new 395 cal on the 375 ruger case)

quote:

Originally posted by boom stick:
charles...

posted earlier today...

quote:
Originally posted by GeorgeS:
While he is an enthusiastic, even rabid, booster of big bore cartridges, I think boom stick's only big bores are Marlins and/or Handi-Rifles, which would preclude his having a 500 A-Square.

bs, did you ever build that .470AR?

George

boom stick...

guilty...

i will be using my christmas bonus to finaly buy the donor action to finish the 470 project

next project the 395 boom stick (new 395 cal on the 375 ruger case)

Sorry -- I guess I must have done some work today and not followed the board closely enough!

Keep at it and you will get one finished.

quote:

Keep at it and you will get one finished

thanks...i think...

lets post about how much the 395 is gunna rock!

stuart...can we do a lapua on one of yer large actions???

a poor choice in caliber!Tell me what you want to hunt and I'll chose the right one for you.Don't get to carried away and get lost,when the TRUTH is not far!

I'm here, still doing it. Making some chromoly actions. I'll get some stainless blanks for the next run. prior obligations to fulfill.
Stuart

tinman...what case will you use?

Timan,

What alloy do you plan to use for a stainless M98, 400 series or does 17-4ph rate for the wish list?

quote:

Originally posted by boom stick:


guilty...

i will be using my christmas bonus to finaly buy the donor action to finish the 470 project

YEEHA!!! you'll love it


jeffe

quote:

Originally posted by Timan:
I'm here, still doing it. Making some chromoly actions. I'll get some stainless blanks for the next run. prior obligations to fulfill.
Stuart

Stuart,
Thanks. You'll be the only maker I know of producing THE HOLY GRAIL: STAINLESS M98M.

boom stick has served admirably as PR man on this project. Any nattering naybobs of negativity wishing to engage in teasing may try me too.

We've got Harry McGowen and Gerard Schultz working on barrels and bullets.

Gerard is doing a .395/.375 H&H Improved: .395 H&H with the stroke of an engraving tool on the brass case.

I am doing a .395/.338 Lapua Magnum: .398 Lapua Magnum with the stroke of an engraving tool on the brass case.

To boom stick, I have donated the "air carttridge" dibbs rights for the .395/.375 Ruger: .395 Ruger with the stroke of an engraving tool on the brass case.

The ultimate goal is to get Mbogo basic brass made up and use it for necking down to 500, 470 and 400 Mbogo which will utilize the .395 bullet.

I think Stuart has expressed interest in a .416 Rigby either shortened or full length.

I'll bet that would be somewhere between the .398 Lapua Magnum on the short end, and 400 Mbogo on the maximum end. Pretty safe to say that.

quote:

Originally posted by DavidReed:
Timan,

What alloy do you plan to use for a stainless M98, 400 series or does 17-4ph rate for the wish list?

Hopefully Stuart will get the time to give us his thoughts on the stainless alloys he would choose, for THE HOLY GRAIL. I did get some mention in a PM from him.

I forsee a switch-barrel stainless M98M by Satterlee Arms for:

.308 Lapua
.338 Lapua
.375 Lapua
.398 Lapua or .395 Tatanka
.423 Lapua
.458 Lapua

And a second one when needed for:

400 Mbogo
470 Mbogo
500 mbogo

quote:

Originally posted by jeffeosso:

quote:

Originally posted by boom stick:


guilty...

i will be using my christmas bonus to finaly buy the donor action to finish the 470 project

YEEHA!!! you'll love it


jeffe

all thanks to you jeffe

rip...did we figure out a way to get gerard a barrel???

maybe someone from a.r. going there on hunt can pass it on??? isnt 500 grains going in the spring???

gerard...cant wait for the world premier of the 395 bullets to the world...

rich...

where do we stand on doing a 395 ruger?
is it just a matter of raising the money for the barrel and action ect??? we got to get one ready in time for that buffalo hunt

thanks everyone

boom stick,
Gerard has RSA laws to contend with. He is probably capable of reboring a .375 barrel to .395 to get a start on load development, or getting a barrel maker in RSA to tool up. We shall see. He is working on all of this.

I thought you were grown up enough to play this game on your own. Old farts indulging in the vice of wildcats should be very cautious about encouraging the immature in such dalliance.

What is the 408 Chey Tac...???? I hate being so ignorant... Thanks.......

The .408 Chey-Tac (Cheyenne-Tactical) is a true .408 caliber rifle based on the .505 Gibbs shortened about 1/10" and having a shoulder in the 20 to 30 degree range (I don't recall exactly).

Looks sort of like an overgrown .338 Lapua and is meant to make a sniper rifle with a greater effective range and lighter weight portability than the 50 BMG. The design echoing Lapua means they probably wanted it to be a slick feeder for automatic weapons as well as bolt actions, if it ever caught on.

Let us use the search function here at AR.com as well as Google, etc.

In July 2001, member BMG was reporting that the Chey-Tac folks were also planning a .398 Chey-Tac for the benchrest crowd.

I don't know if that reflects the true bore diameter of a .408 barrel using the same .408 bullet from Lost River, or what?

That is the Lutz Moeller .408 Chey-Tac bullet, found at:
http://www.home.snafu.de/l.moeller/English/408-Chey-Tac.htm
(If it won't open from here at ar.com, try typing it into the browser, the picture is at the top of the page.)

Some interesting stuff there, until Gerard gets back with some .395 bullets.

The .408 Chey-Tac: essentially requires an action that is suitable for the 50 BMG in order to get all it is capable of out of it. A .505 Gibbs type rifle in .408 Chey-Tac would require stubby little bullets and low pressures.

The .395 Tatanka and 400 Mbogo make more sense than that, for a rifle that will actually be used for sport hunting, as well as a turn at 1000-yard shooting in more specialized setup.

quote:

Originally posted by shootaway:
a poor choice in caliber!Tell me what you want to hunt and I'll chose the right one for you.Don't get to carried away and get lost,when the TRUTH is not far!

I take it your grade school let out for Christmas break?

I think 17-4 is the way to go on the Receiver and bolt and extractor and extractor collar. 440c for the cocking piece and safety lever. Titanium for the firing pin. Safety shroud, scope rings, bottom metal and guard screws 416 stainless. Follower 17-4.
Timan

Alrighty then!

tinman... i respect yer busy schedule and work...

when will the next stainless monster mauser be comming down the pike???

and also a necked down rigby will be a damn good 395 rocket

boom stick,
I just put a deposit on one, and I think it may be the first that Stuart has made, but it will probably be a batch of four or so if anybody else wants their version of The Holy Grail. Pick your options. Give Stuart a call. He does a titanium standard Mauser 98 too. I don't need one that light, right now, maybe later.

My version:
Stainless Mauser 98 Magnum
0.750" bolt diameter
.416 Rigby dropbox (4 down)
3-position M70-style safety
Square bridges milled ...

Milled to accept Leupold QRW, Warne, and Badger rings.

Think outside the box.

www.satterleearms.com

You may be misguided or even heretical (Badger rings on a double-square bridge action ) but you are definitely a doer and not afraid to put your money where your mouth is!

quote:

Originally posted by Charles_Helm:
You may be misguided or even heretical (Badger rings on a double-square bridge action ) but you are definitely a doer and not afraid to put your money where your mouth is!

Charles,
Galileo Galilei was called misguided, and an heretic.
Open your mind! Indeed the earth is not flat, and the earth revolves around the sun, not vice versa!!!

Besides, those 34mm Badger rings will be handy for 1000 yard scope use such as with an S&B 4x-16x P&M mildot. 1" QRW'S or Warnes with a 2.5x-8x or 1.75x-6E, or a 1.5x-5x, or a 2.5x fixed, etc. Plenty of 30mm rings too.

I won't stand in the way of progress, but may be too in love with the past to do it myself.

Of course, with stainless steel and a synthetic stock I do not suppose abandoning tradition would be a problem.

It should be stout for sure!

And as a side note, my wife will tell you that I believe the earth revolves around me! She is mistaken of course.

Good luck with the project. Sounds like there may be a bit of a lead time but it will be worth it.

Yes we are thinking outside the box on R.I.P.s'
action. All stainless, picatinny cuts on the bridges, those badger rings are brute solid.
Timan

go rip!

"Thinking outside of the box." That is a quote of Stuart's warm reception of my request for a picatinny milling of the Square bridges. He is to be highly commended for his helpfulness here.

One cross-slot on the rear bridge and no more than two cross-slots on the front bridge should be enough. The top surface should be flat and smooth like a QRW base, to welcome the carress of the rifleman's hand.

She should be a beauty, if she's a Satterlee.

A .395/.338 Lapua Magnum will be much better than a .408/.338 Lapua Magnum.

the 408 has been done a looooong time ago...this will be new