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» Hard Core Talk » Weapons » GENERAL WEAPONS » Big Wildcat (Page 3)

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Author Topic: Big Wildcat
EdHubel
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It's just experimenting. And it goes slow.
Need to win big lottery to do it faster,
as my resources and available time aren't the
greatest either.

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EdHubel
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Here is sectioned action with parts in.
Original action that had defects
that I sectioned down the middle..I
ground out the top to allow case
to set higher, representing a
the taller action that we will
have due to larger diameter cases.
That lever in the picture is the
lever we will use with longer stroke.
Also in the action layout is the
breechblock, hammer, trigger with a
12GA FH in front, all in to check layout.
This lever looks to be easier to fit
and shape to bigger action and stock,
with a good pistolgrip to handle recoil.
Lever shape fits where trigger is better.Ed


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EdHubel
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I will be posting more research on this thread
about other powders in 12ga plastic cases,about the
12GA FH loads, about scaled up falling blocks, my 700HE long
belted case, and the 28GA FH.Here is picture of
some other cartridges I have with some of mine.
1st= 408CT, 2nd- T-rex necked to 416- 3rd- 600OK
4th- 510HE, 5th-585HE, 6th-700H 3.25, 7th-12GA FH,
8th-700HE. Last most powerful. Ed


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EdHubel
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Here is pic of the first finished model
breech block for scaleup model. You
hammer and trigger in the back of
the block. Ed

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EdHubel
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Another shotgun/rifle experiment is 28ga FH.
Rocky MTN is making me some
3.25 in 28ga cases. They are good to 38k psi.
That will get 500-550 gr out at 2500 in
bolt action.A regular 28ga gun may get to
2000, depending on how heavy barrel is.Should
average 17-1800. Just lengthen chamber.
Get a NEF Ultra cut off leaving breech section
for monoblock and have 28ga rifled barrel
made and screwed or soldered in monoblock.
And being able to hold 38k to match brass,
That would get 2500 fps loads.Ed


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EdHubel
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Here is picture of the first falling block
model of aluminum, with a roughed out
stock to see how it looks. Action is a
rough model. It shoulders nice, and
lever is inlet into pistol grip,
so you can't get banged up
fingers with the big cartridges it is designed
for, like levers that stick down at the
guard.Ed


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EdHubel
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Here is pic of action model with lever open
and the breech block down. Also the action
will have a slot in the top rear for a
top tang of whatever length you need.
Can even add a long tang for tang sights.Ed

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EdHubel
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Here is pic of a double that I will put
barrels in, monoblock style, using the breech
section for the monoblock. This one will be
for 28GA FH. May get another same size for
my 510HE. I will be able to run full pressures
with these.....I am trying to find a bigger,
heavier one to put 12GA FH in. I want
heavier one so as to run pressures like my
Savage as a minimum.Ed.

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EdHubel
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Had question about locking RMC cases onto
lead slugs, as they don't crimp into the
grooves well as sharp bend works thick
mouth. First I resize tight and slightly bell
mouth.Insert slugs which take a little pressure.
Then I use a die with slightly more
taper and swage the mouth into slug, like
the fit you get with bottleneck cases.
Same deal works with our long cases made
from BMG brass.Ed

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DocZeus
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Mr. Hubel, as always, very informative and entertaining. Thanks for the updates, and as KPDPipes has stated, please, keep them coming! Good Luck, and Be Safe! [Big Grin]

DocZeus

--------------------
"Crush your enemies. See them driven before you. Hear the lamentation of the women!"

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EdHubel
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Preliminary testing with VV N-110 powder shows
it works with small primers like the 4759 powder,
in plastic cases. Perfect ignition like the 4759.
Starting loads are 60 gr min like 4759 for good
ignition,600gr slug. In 2 & 3/4" plastic full load is 75gr
with card and 1/4" cushion wad.In Nef 24" bbl 1700fps.
In 3" plastic 87gr, card and 3/8" wad, 1800 plus.
In RMC brass case. 100gr, card and 1/2 wad 1900 plus.
All running same safe pressures as 4759 lab tested.
So that is two powders that are slower than shotgun
powders, and much safer to work with for regular
primers, giving at least 20% more velocity. Ed

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EdHubel
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Along with the two slower than shotgun powders, IMR 4759
and VV N110 that ignite reliably with shotgun primers,
that are easier to load for slugs, in heavy bbl can
get 20% plus more velocity, I've found another. It is
IMR 7383 $3 a lb surplus. Tested plastic 3" cases, perfect ignition with regular primers. 8 types of cases,600gr slug
starting load 100gr. Full load 140gr giving 1800 fps plus
in 24" bbl NEF.With loads halfway between start and full
didn't even have to resize to shoot again.Full load just has
a card wad under slug in 3" plastic.Wad just tight on
charge, as no extreme compression of powder needed.
Will do heavier slugs and
RMC brass cases. Ed

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EdHubel
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Tested 730g with 7383. Perfect ignition.Extracts easy.
130gr gives 1650 plus fps in 3" plastic.
Tested 800g slug with 7383 in plastic.Works good.
Have question about different cases and dies.
The RMC cases use a shotgun primer, thus they have
a real thick base. They are not a thin headed,
balloon headed case, and RMC makes sides thick
enough for regular 12ga wads.
But in a break action the 3" plastic cases
with our 4759, VV110, 7383 loads are close to RMC in
power. Can buy a hundred plastic for price of one RMC.
3.5" chamber 12ga with plastic is as good as RMC for 3"
And if I shot RMC in Savage to get more power,
which I could do as far as the firing process,
the expansion above the base, due to being a turned case
would make extraction stiff, causing extractor to
damage rim. A turned rim will not take what
a drawn one will. Rcbs set should do RMC easy.Ed

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EdHubel
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Tested 870gr hard slug with 7383 in 3"
plastic. Over 1500 fps in NEF short barrel.
I wish it had a longer 32" barrel..........
The folks at 50 Cal suggested we write up a
piece on the 12GA FH. Interested in what we
did to make hairy cartridge using 50 cal brass
adapted to the 12 gauge shotgun platform.
A job for Rob to do? His wild idea has been
viewed about 400,000 times in the forums
we put it in.Ed

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EdHubel
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Found another powder that works with small
primers in plastic and RMC cases, w/600gr slug.
It is IMR 4227. Ignition perfect, same load
levels and velocities as 4759.

Powders slower than shotgun type, that ignite
properly with small primers(shotgun-lg rifle);
we found 4759, VV-110, 4227, 7383 surplus,
the latter a slow powder that also works
with real heavy slugs Ed

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EdHubel
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Pressure tested 7383 with heavy powder load.
870 gr with 128 gr of 7383-- All that could
be put in REM plastic and keep length to what
would feed from magazine of a 3" gun,
after it was roll crimped with tool in drillpress.
1513 fps-- 14700 psi. That is a slug 50%
heavier than factory Buckhammer at little
faster speed and at little less pressure.
Ignition perfect, cases fall out.
Love that $3 a lb powder.Ed

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EdHubel
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Finally able to make the
longer barrel improvement on
the 1887 12ga levergun.......
Rifled and heavy and 31"
long. After many months finally got
a barrel.Ed

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EdHubel
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With NEF. Plastic cases, roll crimped slug
in drillpress. 82gr IMR 4227 1650 fps,
with 730gr, 78 gr 4227 with 800gr, 1600.
Expansion on cases show little more pressure
as full loads of 4759 and 600gr.
Ignition perfect with small primers.
Ejects cases fine. Burns clean.
Got a GEHA bolt 12ga to put a heavier
rifled barrel on to test. Ed

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EdHubel
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Tested 870 gr in NEF with our long
brass case with big primer.I have NEF
with extra hammer spring for big primer.
Got 2000 fps and still able to extract case.
Would do little more, extractor needs
to be wider and set up positive.
Used 260gr of WC-860 and MagPro.
Could use RL-22, Rl-25, Retumbo, etc.
That's 7700 ft lbs.. I get 600 gr slug to
2300 plus in NEF, long case. so you can go
light or heavy.Ed

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DocZeus
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quote:
Originally posted by EdHubel:
Tested 870 gr in NEF with our long
brass case with big primer.

That's 7700 ft lbs.. [Eek!]

I get 600 gr slug to
2300 plus in NEF, long case. so you can go
light or heavy.Ed

As always, impressive, and entertaining, Mr Hubel.

DocZeus

--------------------
"Crush your enemies. See them driven before you. Hear the lamentation of the women!"

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KPDPipes
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Ed, i had a thought today, I wonder how one of those Greener Martini-Henry conversions would work with this..or would the basic action be too weak you think??
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EdHubel
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Put a heavy barrel on Greener and 3"
chambers, and your good to go with
plastic or RMC brass cases, and our
heavy slug loads. I have one here
I worked on, but it won't feed the
long case without a different breech block
mount costing a lot of machining dollars
to the action and new breech. And they are
my favorite style of gun.Ed

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KPDPipes
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quote:
Originally posted by EdHubel:
Put a heavy barrel on Greener and 3"
chambers, and your good to go with
plastic or RMC brass cases, and our
heavy slug loads. I have one here
I worked on, but it won't feed the
long case without a different breech block
mount costing a lot of machining dollars
to the action and new breech. And they are
my favorite style of gun.Ed

I figured you had already tried it...
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EdHubel
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Sometime I will get another Greener
and just set it up with heavy rifled
barrel and 3" chambers. Those loads we
have got for 3" plastic and RMC will get
4500 plus ft lbs. So it will be
a great gun.Ed

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EdHubel
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More testing with 4227. Greg got little over 1500 fps in
3" plastic with 870 gr slug using 74-75 gr of 4227.
I did the same. This compares to much lighter
REM Buckhammer slug, we have more speed. Almost all
the way through 5 ft bundle hardwood boards.
I have Mossy 695 as well as GEHA 12 gauge
to put heavy rifled barrels on. And my 87.
Will be checking Mossy 395
for a guy who wants to put on
a heavy barrel.Here is pic of 695 bolt action
Mossberg with dinky barrel and the heavy long
rifled barrel for it. Ed

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