Until recently I thought that Revolver chambers were cut so that the front band of a Keith/SWC would enter the throat, that has proven incorrect!!
This chamber cast from my SW 657-3 PC (41 mag) shows that the OAL to the start of the .4105 throat is 1.440".
Max case length is 1.290" plus a .100" front band means that the bullet has to jump .050" to reach the throat. Bullet will lay on bottom of chamber, not aligned with the throat.....
This is consistent with my SW 629-4 PC (OAL to throat is 1.440, case 1.285 + .100" front band = 1.385)
and with my SW 586-3 (.357) (OAL to throat is 1.395)(case of 1.280" would need a front band of .115" just to reach start of throat, not enter....
Are all SW chambers cut this way???? Rugers??? others??
What chambers do you know of that are cut so the front band enters the throat??