User Panel
Great work, Ed. I'm looking at the .585 case and wondering just how much black powder I could stuff in there under a 750-800gr cast bullet...thinking along the lines of an 'ultimate' buffalo gun...maybe a High Wall with enough barrel to bring it to 18 pounds or so. It would make a great range toy and would also make great big holes in any unfortunate critter I pointed it at |
|
Thanks Ed. Not sure I have the finances to take on a project like this without selling off something else, gonna have to think about it for a bit. |
|
Guys can have their smiths do them on an Enfield action bolt gun for a
fraction of what others charge for big caliber guns, Ed |
|
Just fit with a little work, as a singleshot only.
Strong enough to hold heavy loads ok.Ed |
|
|
Yes on a Mosin you can rework the top to load the long cases from the top, but the magazine box
and the bottim of the action can't be opened enough to handle our loaded cases . Cases loaded are 3.9" long. We are going to do one here soon.Ed |
|
|
Now that lloaded length quoted is with longest bullets in brass case , we use shorter bullets
but the length is 3.5" or so and is still too long for the magazine, And rim to big for magazine. The rim is also much bigger, actualy bigger than the boltl, so we will rework the front half of the bore in the action to handlle the rim, like was done on the old Mausers made into shotgun calibers. Only with 24ga in the Mosin we still have all the oriiginal bolt lugs making contact for great strength. ED |
|
Quoted: And more fun shooting, using a pistol grip on one of the
585HE falling block test guns. Heavy loads try to spin us around like merrygoround.. Ed http://www.gunownerstv.com/585tact.jpg View Quote Ok, you did that for a laugh. Post the video. |
|
Sorry no video, all I can do mostly is a few pictures.
And that action then was put on a Compstock to test how the stock reduced recoil. Then they traded it off.Ed |
|
|
Do you have a website for the cartridge with info about where I could get one of them? Also where can I get dies and a bullet mold for it?
|
|
Part of info on the thread, for more you can email me.
[email protected] WE have list where you can get dies, cases, barrels, etc. We have load data..ED |
|
Uses same rifled barrel as all 577/585 rifles,
like our 585HE, like the 577NE. They got some here. Ed |
|
Here is some math to show why I really like really big bores.
There is term called Average Barrel Pressure, which is the average of all the pressures in a barrel, from the start where you have highest, called peak pressure. to the lowest at the muzzle when bullet exits. For high powered rifles average barrel pressure run 15-18000 psi. There is a formula that can be used to get Average barrel pressure fairly close if you know the muzzle energy. We multiply ME times 12 and divide by barrel cross section x length. We simplified formula to get the 12 figure, It is inverse of the bore dia x 5 For the 585 it comes out about 10 Example a 458Win usually loaded to 5000 ft lbs, say in a 24" bbl. ABP = ( 5000 ft lbs x 12) divided by (.17 sg in x 24") = 15,000 psi Now you see there isn't a lot of room for big gains, as it would take peak pressures damaging to brass and gun, to get say 50% increase. Now example of 585HE in the 26" bbl ,we have, say a 7,000 ft lb l mild load, a real moderate load in this case. Could use 10 in place of 12, but kept it all simple ABP = (7000 ft lb x 12) divided by (.27 sg in x 26") = 12000 psi The bigger bore allows for a much larger potential, a 50% gain is easy to do.Ed |
|
Oh it is not bad except for the deer or hogs on the recieving end.
That thumbhole stock, weight in the stock, thick barrel gives 12lb gun that shoots easy, even with 5000 ft lb load. More about increasing power, In thin brass case a 440gr slug goes 1500, with about 2000 ft lbs, This is with thin brass but to get this speed, brass expand a lot and hard to resize without crumpling the cases. And using better heavier brass , same bullet, increasing speed to 1750 fps increases energy 50%, same bullet going 2000 about doubles energy. And going to 2300 which good brass holds ok, resizes ok, gives 2 1/2 times the energy. Making a relatively smaller bore shotgun compared to 20, 16, 12ga, with 458WIN power. A good reason to call it 24ga From Hell..Ed |
|
Quoted:
Here is a different look at 585 sabots holding 458cal bullets. Sabots hold leafd as well as jacketed. http://www.gunownerstv.com/458-585f.jpg Here is a long turned streamlined bullet in our 585. http://www.gunownerstv.com/barlong.jpg Anyone wanting to import barrels, actions, cases, etc into Canada from here can work through Prophet River Firearms in Lloydminster, AB. The here being the US, as well as our group with barrels, dies, cases, and McGowen with .585 barrels in stock, CH4D with 585HE dies in stock, gunshops with # 31 shellholders. And later few retail outlets setup with cases in stock... . Ed View Quote You going to take some of those long high BC bullets to a 1000 yd match? |
|
Those high BC bullets should make fair showing in a heavy barrel, long
barreled, gun.. Even spire pointed regular weight bullets, like 750gr should do tight groups at 1000yds. Got a guy is planning on doing a heavy barreled singleshot to test accuracy.Ed |
|
Guys with russian 14.5mm PTRDs, who are tired of monkeying with steel cases,
expensive cases, can make chamber insert and use our cases, In a 5 foot long PTRD barrel we can get 650gr spire point over 3300; pictures of insert model later..Ed |
|
A target worthy of your weapons:
http://www.ar15.com/forums/t_1_5/1672073_A_Dragon_project_is_born____Next_big_student_build_thread_UPDATE_12_12_p6.html |
|
Quoted: Here is picture, nice cast bullet I like for the 585HE and 24ga FH.
It is .585" diameter and 650 gr and these particular ones are a hard lead alloy, plus they've been heatreated. They are about as hard as copper jacketed softs. These have a flat base, and fairly streamlined.. http://www.gunownerstv.com/585castbul.jpg But to penetrate good and do great damage to game or target they can be soft lead and hollowbase like Minie Bullets. Here is picture of timber drilled through with .585 soft lead Minie from 585HE. Picture is the back of 6x6 timbers where Minie bullets came out. Ed http://www.gunownerstv.com/58calpen.jpg View Quote That box is a chiropractor's wet dream. Have you gotten around to building a suppressor yet? |
|
No I haven't, but we can load heavy bullets subsonic,
and there is some talking about subsonic and suppressor but haven't heard of any suppressor yet. I guess they need a licence to do one.Ed |
|
Y'all should seek sponsorship from the North American Chiropractor's Association.
|
|
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.