MTH RailKing vs Premier Offset Steel Caboose?

[sir james I]

Many of their caboose's are the same size, with the premier one having more detail.

[lionelsoni]

In my experience, Rail King pieces tend to have scale height and width, but are shortened in length if at all.  A caboose would be short enough even for tight turns.  This is in contrast to most Lionel O27 pieces, which are smaller in all three dimensions.  I doubt that a Rail King caboose would look right behind a 6464.

[Southwest Chief]

Did a little online research and apparently the Premier Line offset caboose was re-branded to the RailKing Line.  So the same caboose.

But it might be a little large for 6464 boxcars since it was originally a Premier Line caboose.

I found the dimensions:

10 1/4" long (not sure if this includes couplers)

2 1/2" wide

4 1/4" high (not sure if this includes trucks)

[Firelock76]

RailKing articles tend to be a bit smaller than the Premiere line, so a RailKing caboose would work better with 027 rolling stock.

The Premiere line is "O" gauge scale, that is 1/48 size, a bit oversize for 027 consists.

[Southwest Chief]

Is there a difference in size between the MTH RailKing and Premier line offset steel caboose?

I'm looking for an ATSF style caboose that will look OK with O-27 sized freight cars.  O-27 meaning Lionel 6464 sized boxcars. 

I saw a RailKing offset caboose in person and it looked like it would fit in pretty well with.  Maybe a little large, but not as bad as some others I've seen. 

But I also see online that there are several similar looking MTH cabeese in the Premier line.

So is there any size difference between the two models?  Or is this merely a packaging/re-branding difference?

Thanks for any info you can provide.