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British Firearms (Pre. 1914) >> Muzzle Loading - Handguns >> Revolver calibre query
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Message started by A._Roads on 04/23/05 at 8:53pm

Title: Revolver calibre query
Post by A._Roads on 04/23/05 at 8:53pm

With regards to the ammunition used by the British for their Colt's Revolver, I have the bullet written as being 84 gauge, which I think is the equivelant of .357 inch. Can anyone confirm that 84 guage is .357" please?, it's an area that I don't know much about. Thanks in advance, Adrian.

Title: Re: Revolver calibre query
Post by A._Roads on 04/24/05 at 8:15am

Since scouring a heap of books I think .38 is the equal to 84 bore. Does that sound right? Adrian.

Title: Re: Revolver calibre query
Post by dbm on 04/24/05 at 8:44am

The only contemporary table I have to hand is in Hans Busk's "The Rifle" (published 1859). This stops at 64 gauge which is equal to .421 dia of bore.

David

Title: Re: Revolver calibre query
Post by FBoulton on 06/07/05 at 2:17pm

I produced a table of gauge vs diameter some years ago.
The dia is given by D^3=1/N*C where N is the number of balls of lead to the pound and C is a constant (density of lead etc).
84 guage is 0.38102 diameter and 0.3595 is equivalent to 100 gauge.
Fred.

Title: Re: Revolver calibre query
Post by Ross95966 on 06/08/05 at 9:15pm

Cartridge collectors often find "90 Bore" labels and "carrying 90 balls" in references for the navy caliber on the west side of the pond. I believe that the numbers are more nominal than technically accurate.
It becomes even fuzzier when measurements are taken from surviving specimens, as oxides and waxes change things irregularly.
Acceptable tolerance for lead balls has always been rather generous on the + side.
Cheers,
Ross