There is also one on display at the Cody Museum. A Lifter with provenance.






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If someone wants to try to build a nicer version, you have an hour and a half to bid on a good starting place:

https://www.gunbroker.com/item/917466898

Looks to me like that left barrel blew and the area was pounded down, the hole trued up and the hammered area engraved. Then the hole filled with the brass plate. With the rifle barrel inside the bore, it is not an issue.

I looked through my father's old loading manuals, but none listed the pressure the .33 Winchester was loaded to.

In addition to Colt and Lefever, E. Remington & Sons offered both double rifles and cape guns in their Whitmore lifter action doubles. When they went to the top snap doubles in 1882, they began offering the auxiliary rifle barrel. They continued offering the auxiliary rifle barrel into the Remington Arms Co. years.

Attachment 102132

At $100.00 for each “Extra hole” you would have to pay me to take it.

I think I would buy one of those barrels and sights if they were still avaible.....charlie