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Smallest caliber

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I'm not sure what you mean by "was ever", historical or modern. Here's my squirrel rifle in .30 caliber, modern made.
LouisSmithA.jpg

Spence
 
I have no personal experience with them, but I have read of 27 and 29 caliber varmint guns, and also repurposed .22 caliber barrels being utilized. I too, wonder how well they would do? I have at present a smooth barrel 9mm/.35 cal. that I've breeched and drummed w/nipple. It's about 29-30 inches long, and tapered from about 3/4 inch to 1/2" or so. I am trying to talk myself into a fantasy 'birding' gun; a long barreled, light pistol of sorts with possibly a full fore end and front and rear sights for a patched .350 RB for tree squirrel fighting or a 5/8ths shot load for doves, bullfrogs, packrats, and as a cure for rabid armadillos. Also, have considered a BB rifle barreled device to shoot vintage phonograph needles in places requiring really small bore stealth and penetration, with an old steel clothes hanger for a ramrod, heh heh. Thanks for this thread! Geo.
 
just want to know if there was ever a muzzle loader smaller than. 32 cal. That’s the smallest I’ve ever heard of.
If you throw handguns into the picture there were pepperboxes made in .25 and .28 caliber. Colt's Paterson revolver #1 model was a .28 caliber.

I don't recall reading or seeing a longrifle that was smaller than a .32 if we are limiting the type of gun to something that wasn't a special order.
 
I had a .30, and it was a pain. The tiny little balls and patches were hard for me to handle without a loading block. My Mike Keller rifle started as a .29 and somewhere down the line before I got it, it was rebored to .36. Before I talked to him, I wondered why the rod was so small for a .36. Now I know.
 
Loading a .32 is a challenge for me although I like them. I imagine caliber smaller than that weren't that popular back then. But what do I know?
 
North American Arms (NAA) makes their Companion & Super Companion (magnum) .22cal percussion mini C&B revolvers.

c-99-cbacc_1.jpg
 
I think somewhere in the past there was a reference to parlor shooting ,believe mostly they were pistols of small caliber, seemed to be fairly popular in Victorian times. Perhaps someone else has more information on these. It would seem to me these would be small caliber.
 
In the mid to late 70's and early 80's one of my mentors had a .28 caliber flintlock. I would attend shoots and Rendezvouz and we'd shoot together, I was from central Georgia and he was from Tennessee. Some of you might remember him, his name was Charlie Haffner Sr. and we lost a great one when he passed.
 
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