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416, 458, 470, and 500 AR - the line of AR rounds - dialup warning Login/Join
 
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quote:
Originally posted by tiggertate:
Jeff, I think I see a switch-barrel rifle in your near future! Big Grin


If only I can work the wife up to this I see a .416AR in MY future... 370 grain North Forks at about 2400 fps, that should do the trick.


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Posts: 3305 | Location: Southern NM USA | Registered: 01 October 2002Reply With Quote
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quote:
Originally posted by jeffeosso:
quote:
When I look at the difference in the names:
.470 AR
.475 AR


.470 AR denotes a .475 bullet, and .475 AR would denote a .483 or larger bullet.



Ed,
I think this will finally make what the rum and wsm should have been!!!

i haven't made up a case to measure and weigh.. though I think the capacity will be slightly larger than a full length 375 HH case

tell canuch jeffe says "the rum is "basically" a 404..." and yeah, performance will be about the same as the capstick!!

Since it's more or less the same capacity as a full sized HH case (capstick, lott, huffman, 375 webby).... and loading it to moderate pressures.. which makes it "right" rather than "max speed"

estimated, based off HH case max loads

470 - 500gr at 2200
458 - 510gr at 2200
416 - 400gr at 2300
375 - 300gr at 2600
9,3 - 286gr at 2600
358 - 250gr at 2800
338 - see 340webby, subtract 200fps for pressure
8mm - see 8 rem, -200fps for pressure
308 - see 300 weatherby
rest.. well, REALLY fast



jeffe



quote:
9,3 - 286gr at 2600
Confused

9.3x64 Brenneke

286<- grain bullet .. IMR 4350...<- 75.0 grains of powder.. primer.<--WIN 120.. 2,705 FPS
 
Posts: 1557 | Location: Home of the original swage | Registered: 29 February 2004Reply With Quote
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quote:
370 grain North Forks at about 2400 fps, that should do the trick

thumb thumb


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

*we band of 45-70ers* (Founder)
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Posts: 27616 | Location: Where tech companies are trying to control you and brainwash you. | Registered: 29 April 2005Reply With Quote
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potts...he is posting moderate preasure fps estimates...you could handload till the bolt sticks and get 2800 fps if you want ( not recommended) lets wait and see till the testing is done. you could do a full size rum case on the 9,3...man that would be fast, a tad faster than the 375 Big Grin i believe jeffeosso is going for a practical (but still fast) cheap to shoot round (switch barrel please 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)
 
Posts: 27616 | Location: Where tech companies are trying to control you and brainwash you. | Registered: 29 April 2005Reply With Quote
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quote:
Originally posted by boom stick:
potts...he is posting moderate preasure fps estimates...you could handload till the bolt sticks and get 2800 fps if you want ( not recommended) lets wait and see till the testing is done. you could do a full size rum case on the 9,3...man that would be fast, a tad faster than the 375 Big Grin i believe jeffeosso is going for a practical (but still fast) cheap to shoot round (switch barrel please Big Grin)


..Thay already make the 9.3x416 Rigby .

And that 9.3x64 B load is not that hot i posted
its no were near max ..
I already own two 9.3x64s and both have fired that load and the bolt does not come anywere near sticking .. the cases dont need much resizing eather..

But ok i will hang ... ya never know
 
Posts: 1557 | Location: Home of the original swage | Registered: 29 February 2004Reply With Quote
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this is with a hurmous tone, guys

.. yes, and the capstick says 2300, in fact.. there are rounds that out perform all of them...

but!!!

most of the rounds that out perform them are $$$$ brass...

Ever seen a box of x64 brenneke in walmarts?

416 anything?

how about 470?

404??

nah, but 300 rum is right here!!

Remember, this is planning for modest pressure.. not top loads.. I believe we'll all agree that the 470 NE, 500 at 2150, will kill anything... so 500 at 2200 is just as good...

450ne#2 -- 500 - 2150... 2200 is better..

404 jeffe 400 at 2250..
450/400 - 400 at 2150...

so, make it run in that crowd

the smaller alibers, especially the 375, 338, 300 and 7mm are completely blanketed with other rounds... and "another" one there is probably not a huge advatage.

470 capstick vs 470 ar
probably the same case capacity
2300fps 2200fps lower pressure
3.65" oal 3.35" OAl ... fits "std" mag
375HH straight 300 rum
requires long action requires standard action
or
requies lots of mods to std action less

advatage
470 ar.

EXACTLY the same for the 458 lott vs 450 AR

416 rem vs 416 ar (ar is bigger/better than taylor)
same case capacity
same velocity at pressure
rem requires longer or modified action
AR should work in a 300 WIN mag action,

3.65" is about max for a mauser action
3.35 is easy in a mauser (costs less $$$)

SO, a litter of fine wildcats, that do the same thing there are other rounds that do... But, until Neal ame up with the 550, there hadn't been a new bore in 40 years!!!

jeffe


opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about
the416AR, 458AR, 470AR, 500AR
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
 
Posts: 40157 | Location: Conroe, TX | Registered: 01 June 2002Reply With Quote
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good stuff jeffeosso...

will the 470 a.r. be able to follow the headspacing 30-30 rule or is there not enough to work with? i know there have been a few good rounds that dont follow this rule but i just wanted to know Smiler


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)
 
Posts: 27616 | Location: Where tech companies are trying to control you and brainwash you. | Registered: 29 April 2005Reply With Quote
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quote:
Originally posted by jeffeosso:
this is with a hurmous tone, guys

.. yes, and the capstick says 2300, in fact.. there are rounds that out perform all of them...

but!!!

most of the rounds that out perform them are $$$$ brass...

Ever seen a box of x64 brenneke in walmarts?

416 anything?

how about 470?

404??

nah, but 300 rum is right here!!

Remember, this is planning for modest pressure.. not top loads.. I believe we'll all agree that the 470 NE, 500 at 2150, will kill anything... so 500 at 2200 is just as good...

450ne#2 -- 500 - 2150... 2200 is better..

404 jeffe 400 at 2250..
450/400 - 400 at 2150...

so, make it run in that crowd

the smaller alibers, especially the 375, 338, 300 and 7mm are completely blanketed with other rounds... and "another" one there is probably not a huge advatage.

470 capstick vs 470 ar
probably the same case capacity
2300fps 2200fps lower pressure
3.65" oal 3.35" OAl ... fits "std" mag
375HH straight 300 rum
requires long action requires standard action
or
requies lots of mods to std action less

advatage
470 ar.

EXACTLY the same for the 458 lott vs 450 AR

416 rem vs 416 ar (ar is bigger/better than taylor)
same case capacity
same velocity at pressure
rem requires longer or modified action
AR should work in a 300 WIN mag action,

3.65" is about max for a mauser action
3.35 is easy in a mauser (costs less $$$)

SO, a litter of fine wildcats, that do the same thing there are other rounds that do... But, until Neal ame up with the 550, there hadn't been a new bore in 40 years!!!

jeffe


What's a - walmarts - ? you mean the store..
Who shops at walmart ? lol ... Its also kinda hard to find 505 gibbs at walmart and even harder to find Weatherby rounds .. or atleast it sounds like it .. Dont folks most of the time
go to a real sporting good store to "buy" loaded ammo or shell casings.. Hey i live in the bon docks ..... Now with all that said and done buddy i really want to see how it comes out .. jeffeosso i hope your not taking this wrong buddy .. the 470 and a 475 round that will work in a BLR sound great ..

Anyway dont most folks own a Ammo Load Mark IV
to do there reloading on ?

Martin= Pain in the ass Big Grin
 
Posts: 1557 | Location: Home of the original swage | Registered: 29 February 2004Reply With Quote
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o.k. potts thats $20 to the r+d fund shame i must say the idea of a 475 blr makes me giddy 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)
 
Posts: 27616 | Location: Where tech companies are trying to control you and brainwash you. | Registered: 29 April 2005Reply With Quote
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Pottsy,
i think i am am taking it in good humor.. I know you are poking fun, and jesting.. beer

i hope i am coming over that way too!!!

i mean, i realize that this aint going to beat ANY one round, in all aspects... but the brass can be got anywhere.. beer

kinda a trade off thing..

the 470 AR is far inferior to the 470 mbogo... but fits in a model 70..

the 450 would be matched by the lott, and beaten by the 450 rigby, or 460 webby.. .but fits in a stand lenth action...

the 416, same story as above...


So, i think if it as an ultimate compromise round.. the 90th percenter in all catagories.. ..

which is still an A!!!


opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about
the416AR, 458AR, 470AR, 500AR
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
 
Posts: 40157 | Location: Conroe, TX | Registered: 01 June 2002Reply With Quote
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quote:
o.k. potts thats $20 to the r+d fund


Ok just tell me were to send it .. o ya before i forget you might want to look a real reloading press Razzer Razzer Razzer Razzer

Ammo Load Worldwide

Its the press all the "small time guys like me use for larger order jobs .. Na Na Na Na

Martin= Bigger pain in the ass

 
Posts: 1557 | Location: Home of the original swage | Registered: 29 February 2004Reply With Quote
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jeffeosso...you might need to start hiring people to help make these guns because once the rifle world catches wind of this you will be a busy guy. you are right in your thinking about this just needs to meet the other benchmarks not exceed them. they are good enough and this is good enough but more practical in a action-brass way. do they make "wildcatter of the year" awards?


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)
 
Posts: 27616 | Location: Where tech companies are trying to control you and brainwash you. | Registered: 29 April 2005Reply With Quote
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The one thing I've learned since playing with the big bores is, never ever understimate the difficulty of getting componet brass. Sure, you can look at dimensions of various cases and oogle and doodle over a paticular exoctic and figure how dandy of a round it will make. But just because such a case was made, or somebody lists it for sale, doesn't mean said brass will be attainable in a year or two from now, or even right now.

I'm hoping enough RUM's were sold so that componet brass will be available for some time to come. If not, well, at least it's a good 1/4 to 1/10th the price of the more exoctic cases, and all the big reloading houses stock it.

So Jeff, have you figured out the .470 dimensions? I'm thinking .550" casehead, .540" at the shoulder, and ~.505" for the neck and .475" long neck. Shoulder angles the bugger, I figure 30 deg's, easy enough to form with a fl die, but hopefully sharp enough to keep it from moving around much once fireformed.

Hmm, sounds like I need to keep my eyes pealed for a decent price on a used 7 mag. The only thing I've ever thought a 7 mag was good for is a re-barrel to something useful Big Grin thumb


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Posts: 7213 | Location: Alaska | Registered: 27 February 2001Reply With Quote
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Jeffe, got your Email. What the Hell are you getting me into now. Big Grin No, How much is this costing me anyhow. roflmao


Semper Fi
WE BAND OF BUBBAS
STC Hunting Club
 
Posts: 1684 | Location: Walker Co,Texas | Registered: 27 August 2004Reply With Quote
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quote:
So Jeff, have you figured out the .470 dimensions? I'm thinking .550" casehead, .540" at the shoulder, and ~.505" for the neck and .475" long neck. Shoulder angles the bugger, I figure 30 deg's, easy enough to form with a fl die, but hopefully sharp enough to keep it from moving around much once fireformed.



Paul,
DARN close... hadn't gotten it down to .540 or .535 on the shoulder, and the neck thickness is a little vague.. I think .505 is perfect, assuming a .015 thickness, which leaves no reason for inside neck reaming..

BUT, we are checking with jamison (we want headstamped brass, right) on the case wall thickness at 2.75..

What I think is it COULD require reaming.. but, then again, we don't want the spec to read .012, and be .006 short..


Gene,
i have may have a use for your ruger

jeffe


opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about
the416AR, 458AR, 470AR, 500AR
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
 
Posts: 40157 | Location: Conroe, TX | Registered: 01 June 2002Reply With Quote
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quote:
Originally posted by boom stick:
just for visual

375 rum


oops! sorry the .578 on the right is wrong Red Face


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)
 
Posts: 27616 | Location: Where tech companies are trying to control you and brainwash you. | Registered: 29 April 2005Reply With Quote
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So, will a 264 work you think? that is about the only way I'll get into one inexpensive.

Gotta tell you though, not just because I am lazy, well, maybe just that, but I am not into neck reaming.

What about Quality Cartridge for proper headstamp? I know that I talked to him and I thought he said it was about 200 pieces minimum order to get a new headstamped cartridge.

Red
 
Posts: 4740 | Location: Fresno, CA | Registered: 21 March 2003Reply With Quote
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I just ordered a pacnor #5 .475 18 twist chrome-moly


The 264 sure should work!!

We will be talking with jamison on headstamped brass.

jeffe


opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about
the416AR, 458AR, 470AR, 500AR
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
 
Posts: 40157 | Location: Conroe, TX | Registered: 01 June 2002Reply With Quote
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Jeffe
You got it. I am interested also.


Semper Fi
WE BAND OF BUBBAS
STC Hunting Club
 
Posts: 1684 | Location: Walker Co,Texas | Registered: 27 August 2004Reply With Quote
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Picture of tiggertate
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quote:
Originally posted by Dago Red:
So, will a 264 work you think? that is about the only way I'll get into one inexpensive.

Red


I bet a 270 APEX would make a dandy 470 AR! Big Grin


"Experience" is the only class you take where the exam comes before the lesson.
 
Posts: 11142 | Location: Texas, USA | Registered: 22 September 2003Reply With Quote
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quote:
In another thread, I mentioned a .475/.375 based on the RUM case and wondered if that had been done before, or something like it.
https://forums.accuratereloading.com/eve/forums/a/tpc/f/4711043/m/798103743

Canuck says it's the .470 Capstick ( which I also mentioned reading about in an old magazine from years ago ).


The 470 Capstick is based on the 375 H&H case, which is what I thought you meant. I must have misread your post.

Cheers,
Canuck



 
Posts: 7123 | Location: The Rock (southern V.I.) | Registered: 27 February 2001Reply With Quote
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quote:
Originally posted by jeffeosso:
I just ordered a pacnor #5 .475 18 twist chrome-moly


The 264 sure should work!!

We will be talking with jamison on headstamped brass.

jeffe


great! so the 470 ar is first?

let us know when and where you want the r+d donations thumb


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)
 
Posts: 27616 | Location: Where tech companies are trying to control you and brainwash you. | Registered: 29 April 2005Reply With Quote
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You can also count me into the crowd that doesn't like to neck turn or ream brass. My 350 Rigby has well and goodly cured me of any desire to have difficult to form brass. One of these days I'll have to order 100 cases from Hornbear for the 350, but I'm going off on a tangent.

The shoulder dimension is a catch 22, I prefer more taper in a body for extracion, and the biggest practical shoulder.


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Posts: 7213 | Location: Alaska | Registered: 27 February 2001Reply With Quote
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I am like Paul. I love my 6.5 Gibbs but it has cured me of any desire to fiddle-f*ck around with brass forever.

I will cast a vote for a 35 deg shoulder, if there is room for it. I just like that number. Probably my 6.5 Gibbs and 470 Mbogo are to blame.

jeffe, I have no need whatsover for another 470 cartridge, but I think you could count me in on this. I have a potential donor action and a buddy that wants a 470 but thinks the 470 Mbogo is a tad too much for him.

Cheers,
Canuck



 
Posts: 7123 | Location: The Rock (southern V.I.) | Registered: 27 February 2001Reply With Quote
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quote:
Originally posted by boom stick:
quote:
Originally posted by jeffeosso:
I just ordered a pacnor #5 .475 18 twist chrome-moly


The 264 sure should work!!

We will be talking with jamison on headstamped brass.

jeffe


great! so the 470 ar is first?

let us know when and where you want the r+d donations thumb

boom stick
PM me guy ok ... ASAP maybe i can help some how ..
 
Posts: 1557 | Location: Home of the original swage | Registered: 29 February 2004Reply With Quote
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quote:
Canuck



Hey guy,.... Drop me a PM .. could ya ..

Thanks ahead of time ..


Martin

PA Bullet's
 
Posts: 1557 | Location: Home of the original swage | Registered: 29 February 2004Reply With Quote
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This sure is interesting and fun reading.
Thanks for clearing up the questions, even though I don't quite get how the designator jumps up...

After looking at all the different cartridges/cases/etc. mentioned, I had another name flash through my mind:

Big Grin .470 BigMOFO clap


____________________________________________
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Posts: 750 | Location: Upper Left Coast | Registered: 19 July 2003Reply With Quote
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Chris,
i love Dave's round.. and, of course, will be hunting with him in a month!! There's no way it will match Dave's top end.. not a chance..

In fact, I think the 470mbogo is the best all around stopping/hunting rifle of the wildcats...

and now the BUT..

the 470AR will fit in a model 70!!

I am going to ask manson if he can make a "convertable" reamer.. that can do the 470, 458, and perhaps the 416... don't know if it can be done, but you don't know till you ask.

I spoke with pacnor today.. they will be more than happy to hold the reamer for AR members, so everyone will have access to the reamer and heaspace gages if anyone wants to use them.


Also, if we want to agree on a barrel profile, and if it's worth the additional shipping, Chris will do a discount on a bulk buy of the "same" pieces.

So, i'll do the first one, send the reamer and gages to them, and perhaps we can decide, as a group, on a profile and let chris do a group buy.. so everyone can have the same thing, cheaper.. but that will be later.

I am thinking the first one will be the 470 (on a ruger mki or mauser) and the second one will be the 458, on a mauser.

I have a starting drawing to send to manson tomorrow.

jeffe


opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about
the416AR, 458AR, 470AR, 500AR
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
 
Posts: 40157 | Location: Conroe, TX | Registered: 01 June 2002Reply With Quote
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Hey Jeffe,

I'm game.....but three down..........aint going to blow my cool on three down.

Sunny-Hill #755 bottom metal, 4 down, you've got a win pattern for it........ Smiler, seems like the I know the guy that gave it to you.


Billy,

High in the shoulder

(we band of bubbas)
 
Posts: 1868 | Location: League City, Texas | Registered: 11 April 2003Reply With Quote
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BIlly,
hey, i know that pattern!!!
got a model 70 and some bottom metal?

let's do it!!
jeffe


opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about
the416AR, 458AR, 470AR, 500AR
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
 
Posts: 40157 | Location: Conroe, TX | Registered: 01 June 2002Reply With Quote
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Picture of Canuck
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quote:
Originally posted by BusMaster007:
This sure is interesting and fun reading.
Thanks for clearing up the questions, even though I don't quite get how the designator jumps up...

After looking at all the different cartridges/cases/etc. mentioned, I had another name flash through my mind:

Big Grin .470 BigMOFO clap


I like the way you think, but this one had been done already, or nearly so.

Lazzeroni's .475 is named the BIBAMUFU, for Big Bad Mutha F*cka.

Cheers,
Canuck



 
Posts: 7123 | Location: The Rock (southern V.I.) | Registered: 27 February 2001Reply With Quote
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quote:
In fact, I think the 470mbogo is the best all around stopping/hunting rifle of the wildcats...


You know I won't argue with that! I have been a convert for some time. Smiler

quote:
the BUT..

the 470AR will fit in a model 70!!


That is a real nice selling point. Its only downside is that it competes for that niche with the Capstick.

Still though, its a cool enough idea that I could see participating. Smiler

Cheers,
Canuck



 
Posts: 7123 | Location: The Rock (southern V.I.) | Registered: 27 February 2001Reply With Quote
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looking at Pauls pics.................doesnt look like much to headspace off of.


Billy,

High in the shoulder

(we band of bubbas)
 
Posts: 1868 | Location: League City, Texas | Registered: 11 April 2003Reply With Quote
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I'll make some up and measure them... should have about .035 to headspace, or .0175 a side..

once it's fireformed, as the shoulder will be .540, and the rum snould be about .30 there

jeffe


opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about
the416AR, 458AR, 470AR, 500AR
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
 
Posts: 40157 | Location: Conroe, TX | Registered: 01 June 2002Reply With Quote
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My dummy is simply a 338 um necked up and trimmed, it is not a fireformed 470 AR. It was a simple quick and dirty neck up the case, trim it, and stuff a bullet in it to take a pic before heading out the door. Hence, the shoulder is in the wrong spot and of the wrong dia, the 470 AR will have less body taper to produce the shoulder, albeit a small one. Also the cast bullet I seated is shorter than a typical 500 gr .475" projectile.

I was just trying to provide something for folks to look at, what would be more useful is a cad sketch.


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The AR series of rounds, ridding the world of 7mm rem mags, one gun at a time.
 
Posts: 7213 | Location: Alaska | Registered: 27 February 2001Reply With Quote
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dumb question...looking at the "smart round" will you be able to do a .510 or .505 dia. bullet for a semi straight wall case? not that you need the extra dia. bewildered it could be called the 500ar-max


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)
 
Posts: 27616 | Location: Where tech companies are trying to control you and brainwash you. | Registered: 29 April 2005Reply With Quote
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quote:
will you be able to do a .510 or .505 dia. bullet for a semi straight wall case?


If you don't mind headspacing on the case mouth. I'm not a big fan of that.

Cheers,
Canuck



 
Posts: 7123 | Location: The Rock (southern V.I.) | Registered: 27 February 2001Reply With Quote
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quote:
Originally posted by Canuck:
quote:
will you be able to do a .510 or .505 dia. bullet for a semi straight wall case?


If you don't mind headspacing on the case mouth. I'm not a big fan of that.

Cheers,
Canuck



The ultra " Mag " is not a belted case its more like a poor copy of a 9.3x64 B with half the
Umf .
 
Posts: 1557 | Location: Home of the original swage | Registered: 29 February 2004Reply With Quote
one of us
Picture of Fjold
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I'm interested in donating to get the project started but is there a chance of a 404 AR with the .423 diameter bullet?
I don't know why but that just appeals to me.


Frank



"I don't know what there is about buffalo that frightens me so.....He looks like he hates you personally. He looks like you owe him money."
- Robert Ruark, Horn of the Hunter, 1953

NRA Life, SAF Life, CRPA Life, DRSS lite

 
Posts: 12776 | Location: Kentucky, USA | Registered: 30 December 2002Reply With Quote
Moderator
Picture of Paul H
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I was wondering about the 404 AR, but then thought it would cause us all to incur the wrath of Ray Eeker

I guess I haven't seen the allure of a .423" bore unless it's a real deal 404. If you want a cheap/practical 40, seems the 416 T or 416 AR fit the bill.


__________________________________________________
The AR series of rounds, ridding the world of 7mm rem mags, one gun at a time.
 
Posts: 7213 | Location: Alaska | Registered: 27 February 2001Reply With Quote
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