quote:

Originally posted by Robgunbuilder:
There was a guy years ago( cant remember his name) who had a .50BMG case about 2" long and necked to .600. He rebated the rim to match the wby and had a two shot M98 action for it. He had a hell of a time with the cases and it never caught on.
-Rob

quote:

Originally posted by hubel458:
Fired the 4bore with the 760 gr round ball,
which is hard rubber coated steel ball, I
got a bunch of, thus lighter weight than lead
using 100gr of Blue Dot under 300gr RE17,
total 400gr. Hairy load, with 3500 fps, and
20,000 ft lbs. Good projectiles to check
operation and cases. Used the turned 4bore
cases of Owen's that I got a few of,
with shotgun primers, and with that light
projectile case doesn't need sizing.
I am gonna do 1200gr and 1600gr holding the
speeds to give about same energy.
I won't load heavier until I get another
stock like one I have, but that is full
width with original thick sides.
Gun is 28 lbs, 32" barrel.One piece thumbhole
stock makes all the difference as that load
handles as easy as one of our mag 10ga loads in
regular stocked NEF.ED

quote:

Originally posted by hubel458:
You misunderstood or I misunderstood.
The max a Savage with 12ga 2" case size is
45k with modern steel barrel.One of these
days maybe I hope to get a thick walled action built
to take savage bolt,etc, then go high pressures.
The 87 heavy barreled levergun I did I run 30k max
in 12ga size in brass cases..Ed

quote:

Originally posted by hubel458:
Some interesting shooting with 4bore.

ble 760gr baDoull load of 1520 gr total, at 2300 fps.

A buck and ball load, 6 45cal lead balls, 133gr each,
and a 760 gr ball on top, 1560 gr total, at 2300 fps.

Both loads 100gr BlueDot under 225gr Re17, In the
turned brass cases, with shotgun primer.Recoil
manageable, and like a big push. The sound isn't
a boom like regular shotguns, but cracks loud
like big bore rifles,at least twice as as loud.Ed

quote:

Originally posted by capoward:
Ok at Boomy’s request…a 50 BMG cartridge case cut to 2” then sized for 12 bullet…in this case a sketchy facsimile of the S&H 1000gr .729 caliber bullet…here it is:

I may be slightly off on data points; let me know and I’ll revise as needed. And yes I do notice the difference in Useable Case Capacity between QuickDESIGN and QuickTARGET...at this point I can't answer why...will have to ponder a while.

I also did a quick workup in QL and here is what I came up with:
Max. Overflow Case Capacity: 180gr H2O
Useable Case Capacity: 138.784gr with 1000gr .729 S&H SHARRC solid @ Seating Depth: 0.397”
Barrel Length: 20”
Powder: H110
Charge Weight: 103.5gr / Fill Percentage: 75.4%
Propellant Burnt Percentage: 100%
Maximum Pressure: 44708 psi
Muzzle Velocity: 1899 fps
Projectile Energy: 8012 ft-lbs

quote:

Originally posted by boom stick:
Thanks!
1,000@ 1,900 and under 45k psi. 8,000 FPE I would say that is an elephant shotgun load!

quote:

Originally posted by capoward:
Ok at Boomy’s request…a 50 BMG cartridge case cut to 2” then sized for 12 bullet…in this case a sketchy facsimile of the S&H 1000gr .729 caliber bullet…here it is:

I may be slightly off on data points; let me know and I’ll revise as needed. And yes I do notice the difference in Useable Case Capacity between QuickDESIGN and QuickLOAD (Corrected)...at this point I can't answer why...will have to ponder a while.

I also did a quick workup in QL and here is what I came up with:
Max. Overflow Case Capacity: 180gr H2O
Useable Case Capacity: 138.784gr116.298gr with 1000gr .729 S&H SHARRC solid @ Seating Depth: 0.397”
Barrel Length: 20”
Powder: H110
Charge Weight: 103.5gr 92.4gr / Fill Percentage: 75.4% 80.3%
Propellant Burnt Percentage: 100%
Maximum Pressure: 44708 psi 44965 psi
Muzzle Velocity: 1899 fps 1827 fps
Projectile Energy: 8012 ft-lbs 7418 ft-lbs

[i]Edit: Ok, I’ve been tweaking the transfer between QuickDESIGN and QuickLOAD this morning and though not completely normalized as yet it’s definitely closer as QL is now approximate 2.6grs less than QD rather than the previous 20grs more. So I’ve edited my earlier post with the updated more correct data.

Jim
"Life's hard; it's harder if you're stupid"
John Wayne

quote:

Originally posted by hubel458:
The case I used is LC which has largest
corner radius and is built the heaviest.
As for powders, in example H110 is not the
best, for ball powder use H335 and you'll
get near case fill with no fillers. and get
good velocity at 45k. Ed

Jim
"Life's hard; it's harder if you're stupid"
John Wayne

quote:

Originally posted by hubel458:
The Savage has to short 24" barrel.
The 2" case mouth od with slug in it is .790"
Sides at the mouth are .029"
The base is .320" thick.
Case sides just above corner radius is .060".
Case base od is .799".Ed

quote:

Originally posted by hubel458:
The Savage has to short 24" barrel.
The 2" case mouth od with slug in it is .790"
Sides at the mouth are .029"
The base is .320" thick.
Case sides just above corner radius is .060".
Case base od is .799".Ed

Jim
"Life's hard; it's harder if you're stupid"
John Wayne

quote:

Originally posted by hubel458:
I just shortened a BMG case to 2" for info
for Boomie. It holds 150gr water.
With a Henson jkt 730 slug in it it is 2.65" overall.
With a blunter Dixie 600 slug 2.45" overall length.
If you doing blunt Dixie 600gr slugs it holds 110gr powder.
If doing 1000gr slugs you'd have room for 85-90gr,
so your velocity would be 14-1500 or so, at 45k psi.Ed