how to load
and fire a small black powder cannon for blank salutes
These are good, common sense instructions for firing a small cannon (less than 2 inch bore). Remember, any cannon can be dangerous. Use caution and common sense! You should also read the National Safety instructions posted here: http://www2.control.com/~emoore/marty.html
Never
get in front of the barrel, nor let anyone pass in front during loading
and firing procedures.
Retreat 25 feet or more to the rear of the cannon after lighting fuse.
Always
inspect the cannon to be certain it is in good condition.
Things you need to inspect include tight trunnion caps, cracks in the
barrel, mechanical properties of the carriage.
Inspect the barrel to insure it is clean and empty. If recently fired, wait several minutes before firing again. It is best to “swab” the bore with a damp sponge. You want to be 100% certain no live ambers are in the barrel before loading it again.
Insert a 6-inch piece of fuse all the way into the vent hole and bend it at the top so it is perpendicular to the hole (at least 4 inches of fuse should be exposed) . This insures that a spark doesn’t pre-ignite the powder in the barrel.
Determine the correct amount of black powder to use based on the bore diameter of your cannon (chart below). You can always use less! A small amount of black powder (thimble full) produces a boom! Use only fg or ffg black powder.
Pour the powder into the barrel, or if using the foil pouch method, making sure the powder is all the way back in the bore. A wooden ramrod works well. It is not necessary to “pack” the powder. Keeping it confined is the objective.
Wading is not necessary for blank loads, if desired, a small amount of waded, dry paper can be used. Make a ball and push it all the way back against the powder charge.
Never “double load” a barrel. Use only 1 powder charge, 1 piece of wading.
Check around the cannon area making certain it is clear. Announce that the cannon is to be fired.
Light the fuse and retreat. A 6 inch standard fuse gives you about 10 seconds to get away.
Here is one safe and easy
technique for loading your
cannon.
It's great for inclement weather conditions.
(All images can be clicked to view larger)
| Bore diameter in inches |
Typical barrel
length in inches (depends on barrel style) |
Black Powder Grains Maximum |
Black Powder Ounces Maximum |
Approximate *volume fg (ffg**) - powder - Using a aluminum measuring spoon (level measure) |
| 1/8 | 1.5 - 2 L | 10 | .02 oz | 1/8 teaspoon |
| 3/16 | 2 - 3 L | 15 | .03 oz | |
| 1/4 | 3 - 5 L | 20 | .05 oz | 1/4 teaspoon |
| 3/8 | 5 - 7 L | 40 | .1 oz | 1/2 teaspoon |
| 1/2 | 7 - 8 L | 60 | .15 oz | 3/4 teaspoon |
| 5/8 | 8 - 12 L | 100 | .23 oz | 1.25 teaspoon |
| 3/4 | 12 - 14 L | 140 | .32 oz | 1.75 teaspoon |
| 1 | 14 - 26 L | 438 | 1 oz | 2 tablespoons |
| 1.5 | 25 - 40 L | 656 | 1.50 oz | 3 tablespoons |
| 2 | 40 - 50 L | 875 | 2.00 oz | 4 tablespoons |
| 2.25 | 50 -60 L | 1313 | 3.00 oz | 6 tablespoons |
| 2.5 | 60 L | 1313 | 3.00 oz | 6 tablespoons |
| 3 | 65 L | 1750 | 4.00 oz | 8 tablespoons |
* Blank loads
only. When shooting ball, cut these amounts in half.
** ffg - use slightly less
Barrels with bore diameters greater than 3/4 inch are not "child's play" or toys, and should be considered extremely dangerous.