So having gotten the answer concerning the lose chamber in the current Miroku 92 chambered in 45 Colt I now have yet another question concerning the 44WCF chambered Model 92's.
First off what I have discovered concerning the huge chamber in the 45 Colt model 92 ... It has to do with the case having almost no taper. Even less then the 357 Mag. Therefore there the chamber being very large allows this almost completely straight case a chance to overcome the angle to chamber without jamming on the entrance ... Wouldn't be surprised if this is more the reason then the small rim for not chamberings this popular case in the model 1892.
The 73 does not suffer from this as the elevator brings the cases up flat to only require a simple push to chamber the round in the 73 chamber.
Now to my question concerning the 44 WCF chamber in the model 92. Are these Chambers tighter then the Colt round beings this is a necked round? I am contemplating chamberings my blown 92 for the 44 WCF round in hopes that I can have it chambered tight enough to share cases with a revolver ... Where I could not do so with the cases from the 92 rifle as if I size them to enter change with my revolvers they would crack and split almost everytime when firing them back in the huge chamber of the 92.