+1 with the Roadster. I remember when the +P+ Treasury loads first came out. We were using mostly 2.5" m19s, or other K frame Smiths. Later when fired in a 3" L frame they were fairly pleasant because of the additional weight.
While I am sure it can be done, and has been done by some, I personally would not need to shoot any of these out of a J-frame or other similar sized revolver that I owned. I think it could put unnecessary stress on one. I would say restrict them to your K frame too. Just my thoughts.
twoguns