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Black Powder Golf Ball Mortar
Black Powder Golf Ball Mortar

Black Powder Golf Ball Mortar

Barrel Length: 5 1/2"
Bore Size: 1 3/4" (Golf Ball)
Maximum Charge: 125 Grains ffG (8 grams)
Weight: 6 1/2 lbs
Barrel adjusts and locks at any angle.
Base plate has holes for optional mounting.
Instructions included or Download Instructions (PDF)

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Price: $99.95
WARNING: Loading and firing cannons is a highly dangerous activity and can likely result in death, dismemberment, or a serious injury if caution is not observed. Structural integrity of the barrel, powder charge preparation, premature discharge as a result of burning embers remaining in the barrel from the previous cannon fire, and other unforeseen and/or unanticipated conditions may contribute to accidents, serious injury, and/or death.




  • USE BLACK POWDER ONLY! NEVER USE SMOKELESS POWDER [smokeless powders are also black in color]
  • NEVER GET IN FRONT OF THE BARREL or let anyone pass in front during loading and firing procedures. This includes any body parts (including but not limited to arms, legs, eyes, face, etc)!
  • Wear safety glasses, ear protection, and heavy gloves.
  • Never pour powder directly into the barrel straight from the powder container. Always tightly secure lid on the powder container after use.
  • Retreat 25 FEET OR MORE from the cannon after lighting fuse.
  • After firing, WAIT AT LEAST 5 MINUTES before reloading.




  1. Two (2) bore cleaning brushes or swabs (one dry, one damp)
  2. Rammer (wooden dowel)
  3. Bucket of water
  4. Safety glasses, ear protection, and gloves
  5. Powder measuring device (scale)
  6. Pipe cleaners

NOTE: Although a small mortar may appear like a toy, it should be treated with the utmost respect, as any firearm.         

To prevent accidental injury and/or damage, ALWAYScheck field of range for any person(s), animals, or other objects prior to loading and firing.

    Inspect the barrel to ensure it is clean, dry, and empty. If recently fired, wait several minutes before loading and firing again. It is best to "swab” the bore and the powder chamber with a damp swab or brush. Clean the bent hole with a damp pipe cleaner.

    After wet-sponging, the same procedure is used with the dry sponge. The dry sponge should be periodically cleaned and dried off. The purpose of the dry sponge is to remove excess moisture from the bore and chamber. If water is left in the bore, it may cause incomplete burning of the powder charge, leaving dangerous glowing residue (embers). With a flashlight, check to ensure the bore and vent are clean and dry. If they are not, repeat step 1.
    You want to be 100% certain no live embers are in the barrel before loading it again.

    Insert a 3”-6” piece of fuse all the way into the vent hole. 3/32 American Visco or 3mm Chinese Visco work best. CAUTION: hot debris is apt to be blown out of the vent hole upon discharge. Keep yourself and spectators clear of the vent blast area near the mortar. A fuse ignition is often the source of misfires and/or ignition delay, which may provide opportunity for children, pets, photographers, or others to advance beyond the safety zone. Keep control of your area.
    It is recommended to test burn a length of fuse to determine the burn rate

    Measure the correct amount of black powder based on the size of the powder chamber or bore of the cannon. 6-7 grams or 90-115 grains is adequate. 8 grams or 125 grains is the MAXIMUM LOAD. Never use more than the maximum recommended load. Cannon grade, Fg, FFg, or FFFG all work, as well as synthetic black powders. SECURE LID ON POWDER CONTAINER AFTER EACH USE AND KEEP IT A SAFE DISTANCE FROM THE CANNON. NO SMOKING!!!

    Fold a piece of paper into a "V” shape, place powder onto the paper from the measuring device, and, with the mortar barrel vertical, carefully pour powder into the powder chamber. Tamp the powder into the chamber using an appropriately-sized wooden dowel. The harder you can pack the powder, the better it will fire. NEVER USE A STEEL RAMMER OR ANYTHING ELSE THAT MAY CREATE A SPARK. NEVER PUT YOUR HAND OVER THE END OF THE RAMMER.

    Check the area around the mortar to ensure it is clear. Point the mortar in a safe direction. Be certain what lies in the direction you are firing; the ball has the potential to travel over a mile. ANNOUNCE that the mortar is going to be fired. Light the fuse and retreat. A 6” fuse will give you about 10 seconds to get to safety.


If the fuse ignites but the mortar fails to fire, WAIT 3 MINUTES before approaching. Once you’ve waited 3 minutes, position yourself away from the vent blast area and the muzzle. Clear the vent with an aluminum or brass gimlet (a wire used for clearing the vent). Re-insert fuse and proceed from Step 6.

If three (3) attempts fail to fire, flood the bore and the vent with water and pour out the contents, allowing the wet powder to slide from the barrel. Then, beginning with Step 1, reload.


  1. Fill a bucket with very hot, soapy water (dishwashing detergent works best).
  2. Pour the water directly into the barrel and vigorously scrub the bore with a cleaning brush. Repeat this process until the bore is clear of any residue. Clean vent hole with pipe cleaner.
  3. Rinse with hot water (hot water evaporates quickly and simplifies the drying procedure).
  4. Dry the bore with a dry cloth. Dry vent hole with dry pipe cleaner.
  5. Oil the bore with WD-40. Use generously, spraying the vent hole as well. For long-term storage [longer than one week], use automotive motor oil and heavily coat the bore and vent hole.

NOTE: WD-40 and/or some other sprays will evaporate over a period of time, which can allow the bore to rust.

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"I use shotgun bore patches to act as a gas check around the golf ball. Helluva drive, but it has a really nasty slice after 400 yards."

Flap Jack on 7/30/2018 1:23:56 PM

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"Yeah Baby"

Dave on 3/22/2018 8:59:10 PM

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"Golf ball boomer"

Templar777 on 1/11/2018 4:57:35 PM

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Jurassic Biker on 12/20/2016 4:17:25 PM

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"This mortar is awesome!! first shot with 80 grains of 3F sent the ball over 200 yards and well over 80 feet in the air. Makes a great addition to my collection of mini's"

Keith Skaggs on 7/13/2016 10:11:33 AM

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"The built in Powder chamber on this Mortar helps it to shoot efficiently, compared to my other mortar without the chamber, I get nearly double the distance from the same powder charge. I can't say enough how much fun this has been for myself and friends. If you like things going bang, then this is for you!"

Tony M on 11/23/2015 6:57:58 PM

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"Heck Yeah, baby, F-15 Eagle powered golf ball killer"

Possum King on 7/22/2015 6:18:44 AM

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"This thing is a blast, fits right in for people that love a bang, golf balls just go and go,! Love it"

M nicol on 6/30/2015 5:21:09 PM

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