Recommendations for Peterson Pipe (Larger):

[filmguerilla]

Have all of those. While I like my Rathbone, ain't no way its chamber is bigger than the house or pub pipe.

As I already said once, my Rathbone is slightly larger than my Pub. So, yeah, they can be bigger. There is variance. If you look at the examples I posted from SP you can see there’s very little difference between the three pipes I listed. House pipes are larger, but not by much.