I have used the Excite bb's, and they do behave a lot like steel bb's in the handling, not much 'squasage' in loading etc. I have never tried the Gamo bb's, but have heard that the Dan Wesson 2.5" smooth bore likes them, so I am going to get some to try in mine. Presumably any of the shell-loading revolvers would be happy with them, someone with a Mk VI Webley might be able to relate their experiences.
A jolly good WW2 era pistol to try out!
Just clocked that you are in Long Eaton, which club do you shoot at?
Cheers, Mark.
Too many guns, or not enough time?