12ga,8ga,4ga FH; 585HE/700HE; Big Bores--

[hubel458]

Here is picture of 24ga FH in the Mossberg bolt gun. On a
Mossy 390 frame, .585" heavy barrel, same as 24ga size.
Chamber is set up 3" with shotgun style forcing cone,
so it can use 2.5" plastic cases and 2.5" Magtech brass
cases with slugs or shot and for 3" cases we use 577NE
3" brass. Really make a hairy 24ga using the 440gr to
540 gr Minie bullets at 21-2400. If you take 540 Minie bullet
mould and leave out base pin you'd have a 650gr that
would do. All these bullets and slugs as well as jacketed and
turned 577/585 bullets work in 24ga as well as my 585HE.
And the smaller Minies work in our 12ga sabots. I keep
saying 58cal is where it is at, and there are more bullet and
slug choices in the .585 size, easy to find, than any other
caliber over 458. And Minies are like 40 cents each and
cheaper if you cast your own.

　
Here is picture .585" barrels from McGowen, with other barrels.
Most of the McGowens profiled and some straight blanks.
Others we have are the slow twist and smooth blanks...
In back some of the cases and die sets.

Here is picture of an Enfield and a BBK in Hogue recoil
reducing stocks. These stocks are the rubber coated ones with
the easy to grip, nice pistol grip.Has McGowen 26 inch barrels,
1 to 20 twist, barrels are heavy profile and taper
to .980 inch at the muzzle. Guys are doing more Enfields
and other actions through the winter. Ed

[gitano]

Now THIS is something I can really get behind!
 
 The issue always comes down to BOLTS, and by extension, receivers. But the bolt is the biggest hurdle to overcome.
 
 Are you parting with any of those McGowen barrels?
 
 Paul

[hubel458]

Yes we are selling them just at cost;  $200 shipping included.
We sell a package of 100 cases, die set. and barrel with shipping
for  $750.  And guys will get more enfields  and other guns
done this winter.Ed

[hubel458]

Some guys in 12ga like to use the Magtech brass cases
but the cases being brass the sides are thinner than
plastic, and that makes loose fit in 12ga chambers.
And cases expand a lot with heavier loaded slug
loads, are harder to resize, wear out quicker.
But I found that .750 hollowbase 10ga slug fits
those cases and still chambers in regular 12ga.
chamber, it isnt a sloppy fit.
So If you have a 12ga smooth barrel with full length
backbore job, of .850" bore or bigger you could use
the Magtech brass and .850" size 10ga hollowbase slugs.
Now these .850" slugs won't go in a 12ga plastic case
and chamber in regular 12ga chamber.And you do not
fire them through 12ga regular size barrel.
Brett in MN used the a BPI AQ slugs in his full length
backbored 12ga and got fair accuracy as he said the wads
under slugs expanded a lot for a decent fit.
The 10ga slug shown in the 2.5 inch Magtech is 800 gr,
and .850" diameter. These cases will take magnum
pressure so you can get good speed, for what this short
case can hold.
It is too bad they don't make 3" and 3.5" versions.
These 2.5" cases are easier to find and much less than
others, so if needing brass ones you can rig up guns
to work with them. To build a new barreled gun in actual
12ga size, IE .729" bore, you'd make chamber to
minimum specs so cases don't over expand.
In the picture are 2 10ga slugs on right, like in the case,
and 2 12ga jacketed slugs and one 12ga lead slug left.ED
　

　
　
Here is the ytube URL again for our guy
shooting 585HE in his NEF----By mid summer we plan on a
pickup truck load of more 585HE cases coming in.
http://www.youtube.com/watch?v=HypaUdwQGAc

[gitano]

Thanks, Ed. Good info!
 
 Paul

[hubel458]

Here is good simple system with big hollowbase slugs to stop
the skirts from deforming, I found that dense dow foam works
good, I was using glue gun but dow foam is easier, Just cut
plugs out of foam sheet and force into the base. Make a tight
fit, use spot of glue inside, glue that is for foam....
Trim off the foam flush..In picture is 10 ga 900gr slug.

How we get good 24ga plastic seals with protusion on
top that fits up inside 58cal Minie base, same bore as 24ga
and our 585HE. I get the 24ga seal by cutting apart the BPI
24ga Brush wad, getting two seals out of each.Works great
in plastic case giving a shorter column than other seals and
wads, so we can get in enough of our 4759 for good speed.
The 24ga idea is getting nicer all the time with
the variety of cheap 58cal slugs, and good 3" brass cases,
drawn cases, we didn't have to wait to get made.
And all kind of guns we can use, bolt 395 Mossbergs, single
shots of all kinds, Autos,, pumps. bolt action Savage,
even 1887 Win and Greener MKIII, bolt action JC Higgins. .

Here is picture Khan auto we setting up 24ga FH, it is 3.5"
model, has a 12ga barrel to change with. Being 3.5" it
feeds/ejects through lengthened port 3" brass 24ga cases we
made from 577NE brass. We rework back of the bolt for
slightly longer stroke.Ed

　
　
　

[hubel458]

Here is picture of 24ga cases, loads; and some slugs and seals.
Brass cases are 3", plastic cases are 2.5". Brass 3" can be loaded
to match 577NE power.

Here is of 24ga in an 87 Win, just test gun of mine. Uses same barrels
as our 585HE, This one has slow twist for Minie bullets.Our guys
have got supply of regular and slow twist barrels.

Here is picture of the first 585HE done and shooting in Australia.
It is owned by the poster, 'tankhunter' on the AR forums.
Built by his smith who has a reamer.
Guys there can get cases from Bertram, and there will soon be three
reamers there. There is a company there now making 585 barrels,
Allan and Grant Swan. in Redbank, Queensland.....Ed

　

[gitano]

For most of the stuff that comes out of Oz, if you have to ask "How much?", you can't afford it. I called PacNor about these barrels (for the *** From Hell) and was told "No. We do NOT make those."

Paul

[hubel458]

Getting stuff done for rifled 12ga work and trying to get brass 12ga cases
made getting slower all the time --- which is another reason
I am pushing my 585 HE hard. I got barrels. Mcgowen just did a
bunch more.  Guy over there doing barrels We got many  thousands of
decent priced 585HE cases, easiest way for me to go
and test. And the supply of bullet varieties is better than
any size over 458..Ed

[hubel458]

Finally got back to forums.Been busy with 24ga FH and 585HE
and getting 585HE cases made, as many as possible...
We are now working a bit with 24ga FH and here is picture
of it with our 585HE case. Both use same bullets/slugs, same
bore barrels. Main use difference, 24ga FH easy setup in break
actions and 585HE in bolt actions and falling blocks.

Picture of non-discarding 585/24ga sabot cup I found that holds
458 bullets and slugs tight. It had hammerhead type slug in it that
was pulled out, wouldn't stay in tight after pulled. Sabot was a loose fit
in 20ga, though made for 20ga, but small, so I shrunk the bottom rib,
fits perfect, super tight, in 24ga and 585HE. A press in fit gives
good resistance for good ignition.

Here is another 24ga/585 sabot that holds .452" 45cal pistol
bullets. Made by Hornady for 58cal Muzzle loaders..
With 250 gr bullet in 585HE hot load will go about mach 4.

Here is easy way to weight plastic stocks with hollow butts, use rubber
coated computer mouse balls, weight comes out perfect without being
too heavy if using that much lead.And coating keeps them quiet, and
we hold them in with piece dense foam under butt pad....Ed

　
　

[gitano]

I love this stuff!

Paul

[hubel458]

First AUS buffalo killed by 585HE. By Tankhunter with his Ruger #1.
If you use closeup on picture, you see loaded round on the buffs hide
next to the 585HE Ruger #1.... A nice heavy barreled gun..Ed

　
I put the 585 in a Savage 112, lots of room lengthwise, figuring out an
extractor is a problem, but then got a look at the savage 212, the 12 ga
one with big diameter bolt and locking lugs. Its locking lugs are bigger
than the lugs in a big PH bolt action. So one day will do one
on a Savage 212, and adjusting extractor to fit no problem...Ed

[gitano]

I have a 212. Some of the posts in this thread prompted the purchase. I contacted PacNor about making a 16 gauge rifled barrel - I LIKE 16 ga - and got "Sorry. We can't do 16 gauge." I was disappointed.

What barrel is on the Ruger No.1?

Paul

[hubel458]

The #1 in pic above  has a  .585"  barrel , used for our 585HE,  577NE, and also
for out 24gaFH.  A 24ga FH  would work good in a  Sav 212,
We have pile of barrels and cases for 24ga FH,.
 
Here is picture of 585HE 100 cases loaded, CEB solid nose bullets
and hollowpoints. This bullet is a turned solid with wide meplat
or wide hollowpoint. .

Here is picture of triball loads that fellows like for deer and hogs,
and just general tear em up fun, with using BPGS seal to improve
sealing under what are heavier loads. The balls are .600" and
315gr. each. The wadcup is a TUPRW123 that Precision sells.

I need a bunch of empty 3.5" 20ga plastic cases.
　
Our 585 caliber is modern bolt action continuance of the 577 Nitro
Express rimmed case, that many big game hunters like, usually
set up in double rifles. It has an interesting history, from the old 24ga
size to 577NE, to 585 Nyati with G&A picture of Ross Seyfreid
shooting one in a Ruger #1 under recoil knocking his shooting glasses
off, to the Trex of internet fame knocking guys over with recoil,
to our 585HE the strongest yet.
The 577NE is an offshoot of 24 gauge caliber paper cases, only they went
eventially to brass cases. Back in the 1860-70s, starting first with short
cases and black powder, cases built like shotgun cases, called the
577 Snider, then going to coiled brass cases, still with black powder,
then on to drawn brass cases, called 577 BP Express. then to 3"
and other longer cases with smokeless. The Snider started out with a bullet
of .570" diameter and through the progression to the 577NE bullet
diameter ended up at .585". This general bore diameter of cartridge guns
and muzzle loaders, it is really interesting on how they developed
and were used by military and then hunters over the years. The Snider
was necked down to make the 577-450 , a military round used all
over the British Empire, by the tens of millions.
Bases of both 24ga and 577NE are about the same. Now we have made a
24ga FH, a slight regression to earlier times, by taking 577NE brass, and
reducing rim diameter to 24ga specs. Two minute job. And
stamp the caseheads 24 ga.
For shotgun upgrading in power and range, It is all about increasing
the power in easy to find brass cases, stronger actions, and finding
reasonable price rifled barrels. Same barrels we found for 585, work for 24ga.
The 577NE brass we make 24ga drawn cases from, for example are
about a third the cost of 600NE brass, or getting turned 24ga cases made.
We could use 24ga thin cases but they are a pain, expand way too much,
with slug loads which makes resizing without crumpling cases a problem.
Info about the power in types of guns normally set up with 24ga FH,
break actions, bolt shotguns,etc. In thin brass 24ga case, 440gr slug
goes 1500, with about 2000 ft lbs, that's in a 2.5" Magtech brass case.
Now using the better, heavier 3" brass we got, we can increase speed
to 1750 fps increasing energy 50%, going to 2000 fps about doubles
energy. And going to 2300 which good brass holds ok, in heavy barrel
gun, gets us near 2 1/2 times the energy. About 37-40,000 psi which the
actions hold in this smaller diameter case, compared to 12 gauge size.
So makes relatively smaller bore shotgun, 24ga, with 458WIN power.
.Perfect with Minie bullets. Perfect for deer and hogs, bear, etc.
Great for slug hunting in shotgun only areas. We mark barrels 24ga
and cases 24. A decent case that is complimentary to our 585HE....Ed
　

[gitano]

So let's talk about 24ga barrels that will fit a Savage 212. I assume both rifled and not?

Paul