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  1. #1
    Join Date
    Oct 2006
    Location
    DFW area
    Posts
    180

    Default Bowling ball mortar

    Here's a project I recently finished:
    Its a functioning replica of a 1844 Costal Defense mortar built mostly with about 450 lbs. of 1/4" plate,
    a 300 cu.ft. gas cylinder, and a 7" section of 6" roundstock for the breech plug/powder chamber.
    Using a 1/4 pound charge of Black Powder, these will shoot a bowling ball about 500 yards.


    mortar done frt..jpg
    mortar done rear.jpg
    barrel.jpg
    101_0851.jpg
    Last edited by Winger Ed.; 05-04-2011 at 12:24 AM.
    "Gone are the days of wooden ships, and Iron men.
    I doubt we'll see either of their likes again".

    Circa 1920.
    Author:
    Unknown US Coast Guard unit Commander.

  2. #2
    Join Date
    Apr 2010
    Location
    Bronson, Fl
    Posts
    168

    Default

    ****!!!!! 500 yards is a heck of a range with an 18 Lb bowling ball. You have way too much spare time on your hands, but I like it anyway. Any concern of splitting the barrel with a 1/4 pound charge? Thats a pretty good bit of powder, must be a heck of a show when you light it off.
    Bob

  3. #3
    Join Date
    Sep 2005
    Location
    Salem ,Ohio
    Posts
    3,896

    Cool

    That's Cool. I saw the one on Pawn Stars shoot...Bob
    Bob Wright, Grandson of Tee Nee Boat Trailer Founder
    Metal Master Fab Salem, Oh 44460
    Birthplace of the Silver & Deming Drill
    1999 MM185 w/185 Spoolgun,1986 Thunderbolt AC/DC
    Spool Gun conversion. How To Do It. Below.
    http://www.millerwelds.com/resources...php?albumid=48

  4. #4
    Join Date
    Apr 2011
    Location
    The Boonies of Texas
    Posts
    11

    Default

    Great Job, I built a blackpowder cannon out of a high pressure hydraulic cylinder almost 20 years ago. It would shoot 1 lb coffee cans filled with cement about 1/4 mile. I can't find coffee "cans" anymore but it also will use large block chevy pistons for projectiles. Charge was 3 oz of ffg blackpowder.

    Thurmond

  5. #5
    Join Date
    Dec 2006
    Location
    Traer, IA
    Posts
    317

    Default

    Quote Originally Posted by aametalmaster View Post
    That's Cool. I saw the one on Pawn Stars shoot...Bob
    Yep - that is cool - I too saw that Pawn Stars episode - can't remember what they paid for it but it was quite a bit if I remember right....

  6. #6
    Join Date
    Oct 2006
    Location
    DFW area
    Posts
    180

    Default

    [QUOTE=Rbeckett;264778 Any concern of splitting the barrel with a 1/4 pound charge? Bob[/QUOTE]No, 4 oz. by weight is pretty much the standard for these.
    Youtube has lots of videos of folks firing them, and many are just the top section of a tank with a fuse hole drilled in it. The serious Black Powder cannon guys refer to those as 'Darwin Mortars'.

    There's recomendations as to which type & what stamped numbers to look for on a potential tank-- mine checks out.
    The 60 lb, 6" round stock firing/powder chamber with a 2" dia., and 2" deep hole actually takes most of the pressure when its fired.
    The outside band on the mid-section is really just for looks, its also made from the same gas cylinder.
    The breech plug/firing chamber goes into that doubled section a inch or so, and the front band is 3/16" flat bar. I don't think the barrel will split..
    Attached Images Attached Images
    Last edited by Winger Ed.; 05-04-2011 at 10:33 PM.
    "Gone are the days of wooden ships, and Iron men.
    I doubt we'll see either of their likes again".

    Circa 1920.
    Author:
    Unknown US Coast Guard unit Commander.

  7. #7
    Join Date
    Oct 2006
    Location
    DFW area
    Posts
    180

    Default

    Quote Originally Posted by willy View Post
    Pawn Stars episode - can't remember what they paid for it but it was quite a bit if I remember right....
    Thanks everybody..
    I saw that episode too. The one they bought was a Coehorn type.
    They are smaller, lighter, and traveled with mobile Infantry & Artillery forces.
    They have a big block of wood for a base instead of a cast Iron sided sled.
    The coastal defense ones were the big, fixed position, several thousand pound monsters
    that shot Iron balls weighing up & over 200 pounds.
    As I recall, the Pawn Stars paid about $3,500 for it, which is pretty high unless its a cast Iron barrel.
    A season or so later, I saw it sitting on the floor in their warehouse area. So, it probably hasn't been resold yet.
    Last edited by Winger Ed.; 05-04-2011 at 10:32 PM.
    "Gone are the days of wooden ships, and Iron men.
    I doubt we'll see either of their likes again".

    Circa 1920.
    Author:
    Unknown US Coast Guard unit Commander.

  8. #8
    Join Date
    Apr 2008
    Location
    dallas,tx
    Posts
    207

    Default

    About time it is finished Ed. Glad to see you have been productive while I have been gone
    Miller 350P
    Miller Econotig
    Milwaukee Dry saw
    Evolution Dry saw (for sale)
    Scotchman 350 cold saw
    7x12 bandsaw
    1910 ATW 14 x 72 lathe
    fridge full of adult beverages
    Sirius radio

    www.snpequipment.com
    callouses and burns a plenty

  9. #9
    Join Date
    Dec 2007
    Location
    Crete Illinois
    Posts
    186

    Default

    I was in Vegas a few weeks back..........the Cannon was still in the showroom..Jim
    Quote Originally Posted by Winger Ed. View Post
    Thanks everybody..
    I saw that episode too. The one they bought was a Coehorn type.
    They are smaller, lighter, and traveled with mobile Infantry & Artillery forces.
    They have a big block of wood for a base instead of a cast Iron sided sled.
    The coastal defense ones were the big, fixed position, several thousand pound monsters
    that shot Iron balls weighing up & over 200 pounds.
    As I recall, the Pawn Stars paid about $3,500 for it, which is pretty high unless its a cast Iron barrel.
    A season or so later, I saw it sitting on the floor in their warehouse area. So, it probably hasn't been resold yet.
    Welding in Crete
    Syncrowave 350 LX
    Millermatic 252
    Millermatic 180 w Spoolgun
    Miller Gold Seal 155
    Miller Elite welding helmet
    JD2 Tubing bender with Hydraulic conversion
    Evolution Raptor15" SteelDry Cut Saw
    Hypertherm Powermax 30
    Some really cool hammers BIG and small

  10. #10
    Join Date
    Oct 2006
    Location
    DFW area
    Posts
    180

    Default

    Quote Originally Posted by STRENGTH AND POWER View Post
    About time it is finished Ed. Glad to see you have been productive while I have been gone
    Yeah, yeah,yeah,,,,, You snot nosed, young a##-^(, so & so,,,,,,,:
    I got socks & underwear older than you are.

    Productive?
    What do ya know about that %#*@?.......
    Heck, I've been slaving over a hot Paint gun, Antique MIG, a pair of worn out Vice-grips,
    and a cheap Cresent wrench:
    While you've been cruising around in that luxury edition, Company truck---
    Probably soaking up the sun,, laying on the beach,, working on your 'Tan',
    entertaing 'Ladies of the night', and just generally having a grand ole' time.
    Last edited by Winger Ed.; 05-07-2011 at 12:42 AM.
    "Gone are the days of wooden ships, and Iron men.
    I doubt we'll see either of their likes again".

    Circa 1920.
    Author:
    Unknown US Coast Guard unit Commander.

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