IMPORTANT UPDATE
It seems (after talking to a couple of pards) that I have not been able to properly explain the workings of the
New Improved Thuer® BREECH LOADING Cartridge conversion. There are a number of things about this conversion that really stand out and all of them are important!
The "conversion" ring (this is the part that contains the firing pin) is
indexable by rotating it left and right with your thumb (or other digit if yer thumb is missing). The reason for this is so you can place your revolver on
SAFE or
FIRE. YES there is a manual safety. It is located in what was originally the "eject" position on a front loading Thuer®. This ring is indexed off the edge of the frame (below) by a ball plunger, which is adjustable for engagement.
There is no loading port to cut in your frame (yes loading through a gate is faster than pulling the barrel but the fastest reload is always another loaded pistol). Why cut a port in your collectable Colt cap and ball pistol? If you are used to shooting a cap and ball than your pistol should be set up for easy wedge removal and if you are shooting Black Powder cartridge ammo it just allows you to wipe the fouling off the front of the cylinder while it's apart.
The firing pin is
removeable. There is a small set screw that interupts a slot in the side of the firing pin and by backing it out slightly, with a pocket screwdriver, you can clean the firing pin and the hole in the conversion ring. By the way that firing pin is twice as big as you are used to (meaning twice as strong) and guaranteed to not bend or break. Also the material in front of the firing pin (the thin area of the conversion ring) is twice as thick as you are used to. No worry of "peening" the frame like on some conversions.
Don't forget that these are "drop in's" just like everyone else's....
Regards HH