Tony Williams
Well-Known Member
I have a round in my collection which is identified as a 37 x 119R Winchester round for the USN, dated 1891. It can be seen in this photo on my website (labelled as a 37 x 120R - the actual measurement is 119.5 mm, so take your pick!).

I decided to find out more about it after seeing a demonstration of Bapty's blank-firing five-barrel Hotchkiss rotary cannon in this calibre. However, I found that I have no info on it, and surprisingly it doesn't seem to be covered in Mellichamp Vol 1 either.
Does anyone know the projectile weight and muzzle velocity? Also, any history of the guns? Was the USN the only user; how many did they buy; between which dates were they used? I presume that they were phased out when the "USN 1 Pounder Mk 6, Heavy" Maxim type gun chambered in 37x136R was introduced?
Any help appreciated.

I decided to find out more about it after seeing a demonstration of Bapty's blank-firing five-barrel Hotchkiss rotary cannon in this calibre. However, I found that I have no info on it, and surprisingly it doesn't seem to be covered in Mellichamp Vol 1 either.
Does anyone know the projectile weight and muzzle velocity? Also, any history of the guns? Was the USN the only user; how many did they buy; between which dates were they used? I presume that they were phased out when the "USN 1 Pounder Mk 6, Heavy" Maxim type gun chambered in 37x136R was introduced?
Any help appreciated.