There is a Remington rolling block listed on Gun Broker as being a #1 action chambered in 38-55. Looking at the pics it appears to be a number 2 because of the radius at the butt stock/action interface. I'm confused. I know that the #2 was offered in 38-40 and in 38 rimfire, but surely not 38-55. I asked the seller for additional information and he replied that the barrel was marked "38" and that the bore at the muzzle measured a little over .361".
Here's the listing (You need to Login or Register to view media files and links)
He still calls it a #1, but I'm thinking it is a #2 rimfire 38.  What say ye?

John

If you have never worked a gun show the "nod and smile" is used quite often. Every one is an expert...




JMH

Definitely a #2 but if you look close there is not a step ,
The receiver is actually beveled to meet the barrel.
So face of action is square. Factory work I don’t know.

I think it look pretty good with the bevel. But it'd sure make a change to a fatter barrel a big problem.

As many of you know, I've been gathering data on #2 rifles for a number of years. The stepped front receiver edge was not originally recognized when I started my data gathering. But was eventually added as a data point in the #2 questionnaire I send out.  
In general, the stepped front edge shows up on earlier rifles. From my research to date, the lowest SN being #24, the highest being 14043.  It is not a common feature, but not extremely rare either.

The GB rifle shown was almost surely originally 38 rimfire as noted by the "38" barrel stamp. 38 centerfire rifles were marked "38CF", .38-40 rifles were marked "38W". There is also a "38 CFXL" and "38XL". I also note that rifle has a rimfire breechblock, possibly converted to centerfire. But it definitely started life as a rimfire block.  My guess is that it is simply a 38 rimfire rifle converted to centerfire. Not an uncommon change.  

In my opinion, just about every statement in the GB description is wrong.

This is the image of a stepped receiver used in my questionnaire.

Steve

Just a little more info on original #2 centerfire breech blocks.  Early rifles used centerfire blocks carried over from the M1871 Army pistol. These are easily identified by the V-notch sight on the top of the block. After these ran out Remington designed and produced a new block with a different shape and no V-notch. These blocks have firing pin retractor too.  Here is a photo of both types.

Many of the early No.2 Rolling Blocks haVe that chamfered edge.

Here are two examples:
(1) Serial No.: 3409 nickel-plated
(2) Serial No.: 5418