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BOS and BOSS belted brass
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I have been working on a belted .470 brass for a 444 Marlin.
I have been using 376 Steyr brass.
Jeffeosso suggested using Mag brass, turn the belt off and rebelt.
This works great!
Boom stick suggested 6.5 RPM brass that would require no head rebating!
He [boom stick] also suggested a name:
“I think it would be appropriate to name the case or line of cartridges I was thinking about it a little and I thought of BOS for belted ought six. I was thinking that the cartridge I described above would be appropriately named the 400 BOSS for belted ought six straight. Any thoughts?”
“Of course the BOSS name can be applied to the larger diameter bullets like the 416, 423, 444 etc so you could have the whole BOSS line of cartridges for 400 on up.
The 6.5 RPM case from Weatherby could be used to form these cases as well but probably expensive.
There is a case manufacturer who could do this by the hundreds or thousands.”
Yep, the name sounds GREAT!
BOS Belted Ought Six
And
BOSS Belted Ought Six Straightwall
So, what do you all think?



The 444 BOSS holds 80.3 grains of H2O.
The 400 BOSS holds 79.3 grains to the top.


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Has my seal of approval patriot
Will the belt diameter be .495”? .500”?
It is a beautiful thing when we come together to create something.
PS
The 400 BOSS will clean up an 06 chamber!
Will 405 dies work? Altered 405 dies?
Long live the BOSS!


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
"Bubba" by the grace of God.

Four legs good! Two legs baa-d!

E Pluribus Popularem et Republican (Out of many, Democrat and Republican)

“We hold these truths to be self-evident. All men and women created … by the — you know — you know the thing.”

Joe Biden.
 
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Belt will be at-least .490".

405 dies have a base of .453", so they won't work.
I don't know if you could anneal them and re cut?


To have a true straight wall 400 Whelen dies won't work either, if you need a full length resize.


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I was thinking cutting a belt on 405 dies
Yes, for a BOSS you can’t use Whelen dies.
You could do a Belted Whelen Improved for max capacity.
I don’t like belts and shoulders though.
I guess custom dies are in order.
Group dies order with
400 BOSS
416 BOSS
404 BOSS
425 BOSS
444 BOSS?


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
"Bubba" by the grace of God.

Four legs good! Two legs baa-d!

E Pluribus Popularem et Republican (Out of many, Democrat and Republican)

“We hold these truths to be self-evident. All men and women created … by the — you know — you know the thing.”

Joe Biden.
 
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tried to post, again 4/3/20


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Are you posting a pic? Can’t see it.


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
"Bubba" by the grace of God.

Four legs good! Two legs baa-d!

E Pluribus Popularem et Republican (Out of many, Democrat and Republican)

“We hold these truths to be self-evident. All men and women created … by the — you know — you know the thing.”

Joe Biden.
 
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Loving it!!

on the dies, they are harder than my ex's heart, so the short (see what i did there) answer is to grind them shorter, and have an "air gap" to the shell holder, where they just touch belt .. make em shorter to be proper length, full stroke, with a big gap between bottom of the die and shell holder -- that way you don't ruin some carbide inserts, and it's WAY less hassle ...

i might would mount a 4.5" grinder with a death wheel (cutoff wheel) on a tool holder in the lathe


opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about the416AR, 458AR, 470AR, 500AR
Order AR/AccRel Brass
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
 
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quote:
Originally posted by jeffeosso:
Loving it!!

on the dies, they are harder than my ex's heart, so the short (see what i did there) answer is to grind them shorter, and have an "air gap" to the shell holder, where they just touch belt .. make em shorter to be proper length, full stroke, with a big gap between bottom of the die and shell holder -- that way you don't ruin some carbide inserts, and it's WAY less hassle ...

i might would mount a 4.5" grinder with a death wheel (cutoff wheel) on a tool holder in the lathe


I have carbide tooling, I can shorten them.

I have read about some people re-cutting them, maybe they were just opening up the necks!


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Thanks!
What is KARC?

quote:
Originally posted by MoreBS:


tried to post, again 4/3/20


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
"Bubba" by the grace of God.

Four legs good! Two legs baa-d!

E Pluribus Popularem et Republican (Out of many, Democrat and Republican)

“We hold these truths to be self-evident. All men and women created … by the — you know — you know the thing.”

Joe Biden.
 
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I was hoping someone would ask!
It's the:

Kick Ass Rifle Company



quote:
Originally posted by boom stick:
Thanks!
What is KARC?

quote:
Originally posted by MoreBS:


tried to post, again 4/3/20


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clap patriot
How about KARMA?
Kick Ass Rifle Manufacturer & Associates


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
"Bubba" by the grace of God.

Four legs good! Two legs baa-d!

E Pluribus Popularem et Republican (Out of many, Democrat and Republican)

“We hold these truths to be self-evident. All men and women created … by the — you know — you know the thing.”

Joe Biden.
 
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These guys make some high quality custom brass with custom headstamps
https://www.rccbrass.com/
Once you get tired of hand making brass Eeker
Then you will get cartridge collectors asking for rounds like me patriot


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
"Bubba" by the grace of God.

Four legs good! Two legs baa-d!

E Pluribus Popularem et Republican (Out of many, Democrat and Republican)

“We hold these truths to be self-evident. All men and women created … by the — you know — you know the thing.”

Joe Biden.
 
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Kick
Ass
Rifle
Manufacturer of
America
patriot


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
"Bubba" by the grace of God.

Four legs good! Two legs baa-d!

E Pluribus Popularem et Republican (Out of many, Democrat and Republican)

“We hold these truths to be self-evident. All men and women created … by the — you know — you know the thing.”

Joe Biden.
 
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quote:
Originally posted by boom stick:
Kick
Ass
Rifle
Manufacturer of
America
patriot
tu2 tu2 tu2


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Who said wildcatting was dead?


opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about the416AR, 458AR, 470AR, 500AR
Order AR/AccRel Brass
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
 
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what do you think of the name 440 BOSS?


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
"Bubba" by the grace of God.

Four legs good! Two legs baa-d!

E Pluribus Popularem et Republican (Out of many, Democrat and Republican)

“We hold these truths to be self-evident. All men and women created … by the — you know — you know the thing.”

Joe Biden.
 
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Maybe a 444 BOSS, or a 429 BOSS.

What would the short action version be called?

quote:
Originally posted by boom stick:
what do you think of the name 440 BOSS?


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444 BOSS regular
444 BOSSA or BOSS-SA Belted Ought Six Short Action?
444 BOSS 2 1/4”?


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
"Bubba" by the grace of God.

Four legs good! Two legs baa-d!

E Pluribus Popularem et Republican (Out of many, Democrat and Republican)

“We hold these truths to be self-evident. All men and women created … by the — you know — you know the thing.”

Joe Biden.
 
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I need some 375 H&H brass to belt!

Hate to waste 340 Weatherby brass.

Had an old case that was opened up to .411.

Ran it thru the BOSS dies.....2.900".......90 GRAINS OF H2O!! 5 Grains less than a 375 H&H!

Might want to use the STEYR head. ?

Belted Ought Six Straight!

I need a longer test barrel!!!!!


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Soooo a BOSS Magnum?
Going for 2.85”?
DG purists would want a case without a rebated rim but that would not be a Belted 06 anymore in theory. If it is stamped BOSS Mag then there would be a clear delineation between the BOSS and the longer unrebated version.
a 2.8ish inch 400 BOSS Mag would be a slenderized 458 Lott (in a good way) Would it get more rounds down without too much monkeying around is the question. If a 9,3x74R could be belted, then you would for sure get more rounds down but that would be the longer 405 belted and not a BOSS Mag.


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
"Bubba" by the grace of God.

Four legs good! Two legs baa-d!

E Pluribus Popularem et Republican (Out of many, Democrat and Republican)

“We hold these truths to be self-evident. All men and women created … by the — you know — you know the thing.”

Joe Biden.
 
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I would love it if you could make a 2.8” Super Ought Six for a long neck 400 Whelen. All dimensions the same except a longer neck.


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
"Bubba" by the grace of God.

Four legs good! Two legs baa-d!

E Pluribus Popularem et Republican (Out of many, Democrat and Republican)

“We hold these truths to be self-evident. All men and women created … by the — you know — you know the thing.”

Joe Biden.
 
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BOSS MAG and a long 405B


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Now we are getting into some serious Boom Boom Room BOOM
That 405 Belted Magnum in a long action would be easy to convert from an 06 based rifle with a bunch of rounds down or still work in an 06 length action and nominal 405 bullets but a significant useable case capacity over a 405 Win.
The Boss Mag might be harder to coax in a conversion but it has its own merits like more taper to .411”

I would be giddy to have either of those or a 2.8” long neck 400 Whelen Super Ought Six made from a 9,3x74.


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
"Bubba" by the grace of God.

Four legs good! Two legs baa-d!

E Pluribus Popularem et Republican (Out of many, Democrat and Republican)

“We hold these truths to be self-evident. All men and women created … by the — you know — you know the thing.”

Joe Biden.
 
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Remember this?
http://www.dave-cushman.net/sh..._rimmed_douglas.html


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Is it also possible to swage a belt on a rimless cartridge? What is easier? your process or this one?

PS, have you seen my 400 Karamojo idea? 375 HH necked up to .411? or the 400-300HH? (pretty much what is a super rare 400 Griffin and Howe) The 400-300HH has a long neck and the 400-375HH has a shorter neck and a ghost shoulder but an easy 375HH conversion.


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
"Bubba" by the grace of God.

Four legs good! Two legs baa-d!

E Pluribus Popularem et Republican (Out of many, Democrat and Republican)

“We hold these truths to be self-evident. All men and women created … by the — you know — you know the thing.”

Joe Biden.
 
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quote:
Originally posted by boom stick:
Is it also possible to swage a belt on a rimless cartridge? What is easier? your process or this one?


Good question, I don't know.

Something to ponder.


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yes it's possible to swage a belt on - weatherby did it

it's a huge hassle, and should be done when making it, not after the fact

but the point here is case capacity -


opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about the416AR, 458AR, 470AR, 500AR
Order AR/AccRel Brass
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
 
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The new longer BOSS MAG dies are in the oven annealing. Made a .500, .490, .480 and a .470.

Only had three before.

Also made new longer test barrels for my Cream Of Wheat blaster. .472" and .453"


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Found out something new today, I loaded the un-rebated head into a 30/06 mag. Of course it hung up on the head.

"Idea" Leave the belt bigger, let it hold the magazine open for the head diameter.

It sure is ugly, but as long as the OAL is near max, the belts and heads stay stacked. They cannot get out of stagger. Cause they all are stacked.

And, they seem to feed out of the magazine OK!!!!

Well, what do you think?


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Some interesting options. I think a .500 belt AND rim would be ideal in a DG set up with a 476 head.


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
"Bubba" by the grace of God.

Four legs good! Two legs baa-d!

E Pluribus Popularem et Republican (Out of many, Democrat and Republican)

“We hold these truths to be self-evident. All men and women created … by the — you know — you know the thing.”

Joe Biden.
 
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I like the 376 Steyr size, .500-.495 Belt with a .495 rim.

My belting stuff.
You could do it with die blanks at $20 each or 7/8 drill rod at $30 for 3 feet.

Then you need to make a bushing holder.


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Cool stuff.
The 444 BOSS with .495” rim and belt is a worthy cat.
A 2.5” version that can function in a short action would be a powerhouse.


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
"Bubba" by the grace of God.

Four legs good! Two legs baa-d!

E Pluribus Popularem et Republican (Out of many, Democrat and Republican)

“We hold these truths to be self-evident. All men and women created … by the — you know — you know the thing.”

Joe Biden.
 
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I have the .429 barrel already profiled for my Stevens 200. It only has a 2.8" mag so this will be the shortest one.

Just waiting on my brother to finish his power spinner.

10" sine plate with a home made 5C collet holder with a motor. Sent it out and had the tube hardened, now just waiting on the indexer.

The surface grinder doesn't have enough travel to do my long reamers, but should be great for shorter ones.


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My belted RUM case to .500” is called the 500 Kill All. A short 2.25” version would be cool for short actions. can you belt a RUM case? Info on that is in my signature line link. It is years old but could use some renewing with a short version. 500 BUM Belted Ultra Mag lol Big Grin


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
"Bubba" by the grace of God.

Four legs good! Two legs baa-d!

E Pluribus Popularem et Republican (Out of many, Democrat and Republican)

“We hold these truths to be self-evident. All men and women created … by the — you know — you know the thing.”

Joe Biden.
 
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My .500 Alaskan head spaces off the mouth. I just rebated the head to .532 on Alaskan brass. Also used 50-110 Jamison, cause no RUM brass could be bought at the time.

I will look, but I should have some belted Alaskan brass.

My Alaskan brass is only.544 at the base, probably why I didn't belt the Starline Brass.

You cannot have much taper in the 500 Kill All, .532 to .529 is only .0015 per side taper.


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Finding the fattest brass is the first step. With your tools, a better case can be made from a larger case. Very little taper. A short version would be better for taper. You can taper the chamber if you need to and have a zero taper case!


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
"Bubba" by the grace of God.

Four legs good! Two legs baa-d!

E Pluribus Popularem et Republican (Out of many, Democrat and Republican)

“We hold these truths to be self-evident. All men and women created … by the — you know — you know the thing.”

Joe Biden.
 
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As noted the 50/110 has very little taper however for use in bolt actions a better design would be a belted 50/90 Sharps case. For this you could start with a 338 Lapua case and form the belt, aiming to end up with a body diameter at the base of 0.565”. This will provide a body taper of approx 30 thou, which is about the same as the 458 Win Mag.

The Lapua case rim could be left untouched, so overall you would end up with a case that was relatively easy to form.

This allows the use of inexpensive cowboy 50/90 dies and a large range of 0.510” bullets.

The use of 416 Rigby brass would probably allow for making a 3” version, which would be a better length for BRNO 602 and CZ550 conversions.
 
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With the Wby case, that would be another option for a .510 shortie.


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
"Bubba" by the grace of God.

Four legs good! Two legs baa-d!

E Pluribus Popularem et Republican (Out of many, Democrat and Republican)

“We hold these truths to be self-evident. All men and women created … by the — you know — you know the thing.”

Joe Biden.
 
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Like JFE stated, using [belting] a Rigby or Lapua case would make a nice .510 BLASTER.

Or I guess that you could just blow out and taper the big Weatherby case down. "OUCH"


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