This video shows two different adaptation systems for the .32 H&R revolver cartridge: the M1895 has a replacement cylinder while the M44 Mosin uses a chamber adapter. [text continues below]

The targets are a pair of 5-shot groups from the carbine at nineteen yards, and two overlapping 7-shot groups from the revolver at seven yards (one of the revolver shots went low and isn't visible.)

The standard M1895 revolver's cylinder was designed for a special 'gas seal' cartridge that is much longer and very slightly larger in diameter than the .32 H&R. The replacement cylinder shown here (note the lack of flutes) was marketed by Century Arms to take .32 ACP cartridges; since this cartridge shares the same head diameter with the .32 H&R, I simply extended the chambers using a .32 H&R reamer. After reaming, this cylinder is able to also safely fire .32 S&W and .32 S&W Long, as well as the original .32 ACP. 7.62x38R Nagant gas seal ammo is difficult to come by, so the extra cylinder gives this old revolver much greater ammunition flexibility. The alternative cartridges do not use the original gas seal function, but they are about equally accurate. BTW, this is a seven-shot revolver and is one of the slowest military cartridge revolvers to load and unload.

I just received a pair of 7.62x54R chamber adapters from MCA Sports last week, which gives me a way to shoot the same .32 H&R handloaded ammunition in both the Mosin-Nagant rifle and Nagant revolver. The carbine is dated 1954, the revolver 1943.

Both the rifle and revolver shot tighter groups using 100 grain .312" semi-wadcutter bullets.

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