| The Eclipse C is a .460 bore, however, bore-size has so little to do with how free-blowing a trumpet is. The leadpipe venturi, and its taper, coupled with the bell taper, and bell throat, has much more to do with that than does the bore. I think that you will find that the Eclipse trumpets, in general, have a more free-blowing feel than most, because of the uninterrupted leadpipe.
Best always,
Bruce |