Another RB identification post

[Cwc]

I just got the receiver in the picture. I’m trying to figure out what it is. No 1, 1 1/2, or 5? Military or sporting? I’m not certain that the lower tang/trigger guard, hammer, and breech block are original to the receiver. The only markings I can find are three lines on the upper tang:
REMINGTON ARMS COMPANY ILION, NY
PAT MAY ?? 1864 MAY 7th JUNE 11th NOV 12th DEC 187?
DEC 31st 1872 SEPT 9th 1873 JAN 12 MARCH 18th 1874

[JimF]

My guess is:
A #1 Military . . . .with the earlier “long” lower tang.
Looks like it was cleaned up a mite.

[marlinman93]

I've never seen a military Rolling Block #1 with the longer Sporting Rifle tang? And the military Rolling Blocks had thicker and wider tangs than Sporting had, and those tangs appear to be the thinner Sporting style.
I think this action is the early Sporting round top #1. There should be a serial number on the lower tang near the furthest rear screw hole.

[Cwc]

My guess is:
A #1 Military . . . .with the earlier “long” lower tang.
Looks like it was cleaned up a mite.

I didn’t realize the military versions ever had a “long“ lower tang. The lower tangs are interchangeable, correct? I was thinking it was likely that the tang came from a different gun, and was not original to this action.

[Cwc]

I've never seen a military Rolling Block #1 with the longer Sporting Rifle tang? And the military Rolling Blocks had thicker and wider tangs than Sporting had, and those tangs appear to be the thinner Sporting style.
I think this action is the early Sporting round top #1. There should be a serial number on the lower tang near the furthest rear screw hole.

When I bought it I also was thinking it was an early sporting action. Once I received it and saw the markings on it I realized that it was late 80s at the earliest, based on the “Remington Arms Company” stamp.

[marlinman93]

I've never seen a military Rolling Block #1 with the longer Sporting Rifle tang? And the military Rolling Blocks had thicker and wider tangs than Sporting had, and those tangs appear to be the thinner Sporting style.
I think this action is the early Sporting round top #1. There should be a serial number on the lower tang near the furthest rear screw hole.

When I bought it I also was thinking it was an early sporting action. Once I received it and saw the markings on it I realized that it was late 80s at the earliest, based on the “Remington Arms Company” stamp.

Yes, you're correct. That rollstamp would make it a late 1880's action, so likely someone swapped in an early Sporting tang. I have three of those, but mine are early military actions with pistol grip Sporting tangs added.