when you say "it fizzled", does that mean the primer actually ignited??? fired ??? without "seeing" it,hard to say what to do but off hand, if it didn't go bang by now, its a 'dud'...any doubt, squirt a BUNCH of something like 'Kroil' or other penetrating oil around the case/shell/bullet in question,let it soak good, down the barrel as well as around the case head (into that chamber)...take few measurements, to "see" just what is where and how far in,etc......is the bullet still in the case?? etc.....
with the barrel of the gun in a well padded vise ( pointed in a SAFE direction) push the bullet/case, back into the chamber of the cylinder, and then remove the cylinder from the gun...we often have seen, and worked on guns where the "squib" load,"fizzled", clicked ,whatever and the bullet stayed in the cylinder.barrel gap, or into the barrel, but they at least separated enough to "clear" the "gap",freeing up the cylinder...it should push back wards, into the chamber if there was NO "detonation" thus causing pressure and doing other "things"............good question as to "how or why " the bullet AND case would get and go that far forward????? wrong ammo?? as noted above rim "separation"???? what....??? hhhmmmmm.................... :?
if ANY doubt, or feeling uncomfortable, or unsure..take it to a gunsmith :wink: