Just tried the Webley, it handles them without problems. All of my DWs do as does my Peacemaker.

The only automatic I've been able to shoot them from is the Umarex PPK/s and that was a really old model (PPK/s Classic) though I am sure they all handle them the same. Other autos that chamber the BB before firing just will not cycle, the P08 included.

Smaller lead balls will be fine in the P08 though, and it is an excellent fun gun to shoot.