In 1860 it was go with what ya got. The US hadn't fought a war since Mexico in 1846. The first US manufactured artillery patterns date from 1841. A smoothbore six pound cannon & a 12 howitzer served extremely well in Mexico.
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Two 1941 model six pounders & a 12 pound howitzer in battery at Stones River National Battlefield.
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Outwardly identical to the 1841 cannon, in fact 1/2 of the inventory was rebored & rifled. At the very position the Chicago Board of Trade Battery dropped trails on Dec 31, 1862 is a section of new cast 14 pound rifles.
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Ames is the best known manufacturer of bronze rifles.
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The magic that exponentially increased range, accuracy & hitting power are these lands & grooves. Same weight, same horses, same crew massive firepower.
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This is the business end of a 12 pound howitzer / gun named after Napoleon the 3rd. A single canon replaced the six & 12 pound 1841's. As the weight on the muzzle indicates, three 1841's were melted down to cast two Napoleons. Once again, same resources, exponential increase in firepower & simplistic logistics. Muzzle loading black powder smoothbore artillery had reached its Pinnacle.
If you visit Fort Donelson National Battlefield there are two carronades mounted in the lower water battery. They were 32 pound antiques in 1860. HMS Victory has two 70 pound smashers on the forecastle. Carronades were lighter, required half the crew of a long gun, heavy weight of metal was counter balanced by short inaccurate range. By 1860 carronades were relics of the Napoleonic Wars.
The ignition of the priming charge began with the gunner pouring powder into a tray cast around the touch hole. Wind & water plaid all heck with that. A quill or tube of paper was filled with fine powder. It was inverted into the vent with a 1/2" standing proud of the breech.
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On the side of each cheek is a linstock bracket. Linstock is a fancy way of saying a couple of feet of broom handle. Slow match was tied to the linstock with six inches or so of the lit end dangling free.
At the order of 'Fire!' Number three waves his arm in a circle to freshen the glowing match & swipes across the touch hole while staying outside the wheel. It is really something to be so close to the jet screaming up out of the touch hole.
At Stones River, Water's Alabama Battery had been issued with worthless friction primers. They spent the night before the battle making quill primers. We do a program annually to commentate that event. The linstock training secession for new volunteers is always dancing on tiptoes affair.
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The vent plug on an Ames model one rifle is for use with a friction primer. Basically, a friction primer is just a short copper tube filled with fine powder stoppered with beeswax. Attached to the upper end is a looped wire coated with strike anywhere match chemicals. Number four bends a knee, the lanyard hooked to the loop stretches & yanks the wire, setting off the fine powder & shooting a jet into the charge.
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In this remarkable image, the friction primer has fired, the light of the charge exploding precedes the smoke to the muzzle. The puff of smoke from the wire is to the left of the jet from the vent. Just on top of the jet is the copper tube rocketing upward. Look carefully to the left of the breech & you can see the lanyard wriggling in recoil. Stones River Living Historians, anniversary program, Chicago Board of Trade Battery position 31 Dec 1862.
There was a period where cannon were fired using flintlocks. By 1860 lt was no longer in use.
Hope this short tutorial is useful. Feel free to ask questions. Rhea
All photos by the author at Stones River NB. Feel free to make use of them, just give me a credit.