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hubel458

700HE and 12GA FH

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hubel458    0

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

hfb.jpg

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hubel458    0

An older style straight grip stock can also

be used as the lever can be straightened easily.Ed

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hubel458    0

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.Ed

hfbo.jpg

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Tube    5

What's the goal of creating these huge calibers? Is it practical for big game hunting, or are you just trying to push the mechanical limits to see what you can accomplish?

Also, how would some of these monster rounds stack up to something like a 50BMG?

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hubel458    0

These are not huge calibers- They are just

hopped up 700s and 12gauges. For fun shooting,

and use for dangerous game. bmg probably a

pipsqueak. Big calibers are cannon/tank rounds.Ed

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hubel458    0

Info about the toggle link. It is up inside

the breech block, and quite short,and that

allows the overall height of the action to

be relatively compact, for the huge

cases we plan on using.But yet the top

part of the breechblock is solid for

great strength.Ed

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hubel458    0

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.

zab.jpg

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hubel458    0

I was looking at an 8ga single on

GB, that looked heavy enough to put

a barrel in for 12ga or 700HE. They

wanted much more than it cost

new.It was a real heavy

Spanish single. If I found an extra,

or the 8ga Tonolini double, I might

leave it 8ga, as I could make a few

cases by reworking 20mm Suzy brass,

can be done without adding rim,which would

be super strong cases like our 12ga FH.Ed

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hubel458    0

It is slang for 20mm Hispano-Suiza anti-aircraft

round. It is a 20mm case longer and thinner than the

regular 20mm Vulcan that came later. It has a rim

big enough for 8ga and I can reduce and swage

the base down to 8ga size and cut case to

shorter length needed.By the way, the 20mm Vulcan

case is the one I made 4bore from.Ed

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macshooter    7

Ah, thanks for the clarifiaction. Maybe you could tell me what this is: The one on the far left, it's 25mm something...(24.90mm) but I don't know what. Ever see one like that before?

BTW these are left to right, 25mm big ass mystery dummy round, 20mm vulcan dummy, 50BMG, 700 HE, and the little 500 S&W...

bigshellssmalldt1.jpg

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hubel458    0

Mac-- The big one you have is the 25mm Bradley used in

the fast firing chain guns.Ed

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hubel458    0

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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eldon519    0
Another experiment in shotgun/rifle realm is

28GA From Hell. 28ga is .550 bore and with 550Mag

barrels & bullets being made it is a natural. Have one

on bolt gun ready to chamber.Chamber still

will fire shorter cases..Ed

28.jpg

I think I missed it, but what do you make the 28 GAFH brass from?

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hubel458    0

I just made one sample case by reworking

Nyati basic long brass. But

it's alot of reforming and rim

isn't exact size needed to match

other 28ga cases. The brass 3.25" cases

I'm having Rocky Mtn Cartridge do them.Ed

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macshooter    7

Nyati brass huh? From one obscure wildcat into and even more obscure wildcat. Cook stuff Ed. Keep up the good work man.

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hubel458    0

Preliminary testing with VV N-110 powder shows

it works with small primers like the 4759 powder,

in plastic cases. Perfect ignition on first

bunch of loads with 600gr slugs.Ed

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hubel458    0

More VV N-110 testing that we got done.

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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hubel458    0

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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hubel458    0

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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hubel458    0

Finished test of 7383/870 slug in NEF.

Tested 870gr hardened slug with 118gr of

7383, got 1500 plus. Perfect ignition.

Cases ejected easy, and has same base

expansion as the 600 gr slug/140gr 7383.

Will have these pressure/velocity tested

in few weeks.Ed

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hubel458    0

Tested a 750 gr banded solid, grooves .009 smaller

than land diameter and got same velocity as

with lead slug weighing the same at same pressure.

Other banded brass slugs with groove debth

same as land raised pressures compared to lead.

Got 2700 easy with 750gr, in long case in Savage.Ed

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Knight    5

Keep us posted on that falling block you're designing as well, Hubel. I'm interested in seeing how that turns out.

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