Bore/Groove Diam of 46 rimfire

[Yellowhouse]

Anyone ever slug theirs to see? Reason I'm curious cause I'm seeing some roundtops that otherwise look original on auction sites yet they are listed as 44-77. Looking at Roys book its seems highly unlikely as nearly all he shows are rimfires. My 44-77 groove is .451 and thats close enough to bump up in a re-done/restamped 46rf I'm thinking.

[roundtop]

Mine run from .451 to .454. Most 46rf are stamped 44 up into the 900 ser no range. This has let the fakers rechamber them and sell to unsuspecting collectors. We have not yet found a 44-77 under ser 1000 that we can say is definately right. But I would think there may be some in the 900 range. Remington did not offer the 44-77 until the late summer of 1872 and getting towards the end of the roundtops. We believe the octagon receivers started around the first of 1873. You must do the math when buying the roundtops. If the cartridge had not been developed, it is highly unlikely Remington made a rifle in that caliber. Also beware of roundtops in 44-60. At least 2 people have rechambered some in that caliber in the last few years. Ed

[Yellowhouse]

Thanks! Were the measurements you gave bore or groove? Anyway, the .44 designation fits in with the use of bore instead of groove diameter to denote caliber. All in all it clears the air a bit on questions I've had on potential cobble jobs offered as 44-77 sporters.