EKM

Hmmm.... I've always been a semi-automatic fan in 10 gauge and in 12 gauge....but

I have a 10 gauge double that we bored the chokes out of to use on wounded geese with buckshot.... don't use it for that anymore as three shotguns for one guy in a blind was a bit much.

I wonder how a double barrel 10 gauge from hell would work out.... the million dollar question is probably, "How well regulated is it?"

hubel458

The main question is barrel thickness that is needed
for our slower powder loads. The loads don't have any more peak
pressure than magnum factory slug loads(like Federal),
but the longer taller pressure curve that goes with slower powder
might rupture the barrels on most doubles. Unless each barrel is
like on heavy barrel NEF Ultras. I have 10ga Zabala double and
after measuringmuzzles I figured it wasn't safe for slow powders.
Barrel should be 1.050" at muzzle for 10 ga with our loads.Ed

hubel458

28gacases are made by Rocky Mtn Cartridge,
Barrel is rifled with 4 grooves, 1-22 twist.
You could do one on Savage 210.Another
shotgun bolt action that would handle it
with little work, heavy barrel, is the
395-495-595-695 bolt action Mossberg.
Just show that 28GA FH isn't puny, here is
picture of it next to a 505 Gibbs.Ed

hubel458

Here is picture and info on Royal
Arms' site for hopped up 12ga loads,
used in little cannons for bomb work.
Anyone got any of these fired that I could inspect to see how they are built.ED
http://www.royalarms.com/EOD/ammo/canonammo.gif

hubel458

So you pumpgun guys here is one that will take our
heavy loaded plastic cases. It an Ithaca, looks
good, seems quality, I'm think they will get
lots of orders.Ed

hubel458

I like the Savage 210 so I'm putting
a 700 barrel on one and chambering for
my 700H 3.25 case. Working on it now.
Should get the same energy levels as
the 12GA From Hell case in same action.
In pic is 700H case in the action. Ed

hubel458

Here is pic showing process of making my
700cases from BMG brass.Shows the steps,
first bmg case, next the belt formed, last case
expanded to 700 cal with slug.
An 06 case on right for comparison.Ed

hubel458

28GA FH research. Guy on forums suggested using 54cal
rifled barrels for 28ga as they are easy to get. I looked into
it and did some testing. It is ok as long as you keep bullet
about 400gr as most 54cal barrels are not super alloy.
You got to use the thick heavy ones also, being stronger.
And everyone with 28ga wants slugs and there is no slug loads
from factory, and to reload the heavier bullets we shouldn't use
these barrels or regular 28ga barrels with 600-700 gr slugs.
But there are couple dozen 54cal bullets out there
stocked all over the gunstore shelves, in weights from 300 to
450 gr. There are heavier but for 28GA FH on deer 400gr is
great. I tested the 405 gr copper plated Powerbelt brand, with
velocities from 2300 to 2800 plus fps. That's 6500 ft lbs.
The 54cal slugs load tight in the RMC 3.25" 28ga case fine by
sizing top a little tighter. Bullet obturates to fit .550 bore
as bullet is hitting target straight. A lot of 54cal barrels
go from 530 to 560. 54cal slugs range from .534 to .560"
There are different sizes of 28ga barrels and chokes,
so some where there is lighter 54cal slug that fits..
And with light slugs the pressure limits with the MRC brass
match top muzzle loading pressures, so these barrels will work.
And great thing is the 54cal barrel guys ain't allergic
to making long barrels. I've shot one MRC case 15 times and
still going strong...Ed

hubel458

28GA FH testing. 405 gr in 2.75" plastic case
got 1400. Tested the Great Plains 54cal
lubed slug, runs from 2200 to 2700. It is
by Hornady and its front band actually measures
.550" and hollowbase. They hit target straight.
Got a bunch of 415gr hollowbase coming that
are 548" from Dixie Gunworks. Only 26 cents each.
All will work in plastic or long brass
case. I found another .550 bbl and coming, and
it will go on a Mossberg 12ga bolt action
for the second 28GA FH to test.. Ed

hubel458

Tested the 415 gr hollowbase slugs in 28GA FH long
brass case. These are ones that Dixie Gunworks sell
that they call their Sharps .548" slug. They all run
about .008 bigger than that so they make perfect tight
fit for .550" barrel, and I used a good lube on them
in the grooves. Same speeds as above for GPs.
They are a little harder alloy slug than
the Powerbelts or Great Plains The 28ga shellholder
for our Lee, Lyman, Rcbs presses , we use, is from
RCBS for regular metallic press rams. For 28ga dies
Hollywood made some for metallic presses.Also for
sizing for bottom 2/3 of the brass case you can cut
top off of the 500J die.The slower powder loads don't
even have to have the bottom half sized, which
is great for a turned case. If we had drawn brass cases
we could get 11,000 ft lbs, in the Enfield, which we
don't really need for deer. 4-6000 ft lbs ok/deer ..Ed[/align]__________________
[/align]