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Author Topic: A new bombard
Dru
Member
Member # 180

posted 11-19-2001 09:17 PM     Profile for Dru   Author's Homepage     Send New Private Message   Edit/Delete Post   Reply With Quote
I am getting ready to design and build a new field piece. I have it in mind to make a small bombard. Since the loading chamber is smaller than the caliber of the piece, and there seem to be some out there with experience in using artillery in other re-enactment venues, I was wondering about the loading proceedure. Mortars from the 18th century are similar in some ways, and I have taken the safety certification course before, but they focussed almost exclusively on canon. I want to be able to fire this thing if I spend the time and money to build it, even if I have to buy a huge can of tomatoes from Costco to do it.

I am mostly concerned with the safe loading of the piece. Sticking my hand in a hole while holding a couple of ounces of powder has little appeal. I am hoping there is a better way. I have fired an 18th century style mortar and, while it only used 90 grains of powder to fire a 3" projectile, I did not load it and don't know how it was done.

Any help would be appreciated.

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Dru Shoemaker
www.medievalshoes.com


Registered: May 2001  |  IP: Logged
Dru
Member
Member # 180

posted 11-20-2001 11:00 AM     Profile for Dru   Author's Homepage     Send New Private Message   Edit/Delete Post   Reply With Quote
Here is a picture of one that I was using as a guide.

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Dru Shoemaker
www.medievalshoes.com


Registered: May 2001  |  IP: Logged
chef de chambre
Admin & Advocatus Diaboli
Member # 4

posted 11-20-2001 11:24 AM     Profile for chef de chambre   Author's Homepage     Send New Private Message   Edit/Delete Post   Reply With Quote
Hi Dru -

Aha! A Steinbusch (probably spelled that wrong). Historically of course, they were firing a cut stone projectle, that would be lighter than a cast iron one. They would fit a sabot between the charge and the projectile because of 1. crappy expansion rates of Medieval powder and 2. resulting gas escape from the irregular fit of the projectile.

Like most modern gunners, I assume your charge will be in a tinfoil cartridge, and you can tailor the form for the chamber itself. Most competative shooters use a milled lead projectile - I don't know if you want to pop things downrange or not, but the modern methodologies would allow for a tighter projectile fit, and remove the need for a sabot.

The mortar crowd of the AAA is usually unfortunatly the dregs of the artillery world. I have personally witnessed boobs in the mortar competitions stick their heads over the muzzle to "see" what was wrong when they got a hang fire. Getting liquored up in there beach chairs whilst they sit outside their convieniently parked motor home on the range is an awe inspiring sight, and a sure-fired enthusiasim builder to the serious cannoneer. I wouldn't trust them (on average) to competently band-aid a scratch, let alone give good advice on the subject to hand.

You might need a cardboard sabot to fire an effective blank - I don't know.

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Bob R.


Registered: May 2000  |  IP: Logged
Dru
Member
Member # 180

posted 11-22-2001 03:42 PM     Profile for Dru   Author's Homepage     Send New Private Message   Edit/Delete Post   Reply With Quote
Chef,
The question still is, do you know the safe loading proceedure for this type of piece. I just found a source for hollow iron balls that would be perfect for a 6" piece, and I really want to make this. Eventually, I will have a one man artillery park.

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Dru Shoemaker
www.medievalshoes.com


Registered: May 2001  |  IP: Logged

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