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Hello all, I recently purchased a model 37 single shot 20 gauge non red letter. It's a sweet handling little thing, but I can't help but wonder if they ever came with an optional accessory rifle barrel or has anyone attempted to convert one ? From what I can see the forearm and firing pin could be potential hang ups. Any input appreciated! Thanks in advance

I have never heard of that. I do not think they were built to take that kind of pressure but I could be wrong about that.

HIGHGEARED1: I am a long time admirer and user of the Winchester Model 37's.
I have owned and shot them in 12, 16, 20 & 410 gauges.
Currently I am down to just one Model 37 and it is an unfired 16 gauge.
I wish I had kept them all but alas the temptations of "profit" led me to let loose of the others.
I also doubt the Model 37 was built to withstand centerfire cartridge pressure?
And it seems to me the cost of building a barrel to fit the Model 37 action would make the effort quite expensive in todays world.
Long live the Winchester Model 37.
Hold into the wind
VarmintGuy

Alternatively, have you consider shotgun barrel inserts?


https://chaszel.com/store/#


I have a .45-70 insert for my M37 12ga that I point & plink cast bullets at <1000 fps with.

Most of their inserts are currently out of stock but when they restock their inventory, I'll probably purchase one for my M37 20ga. Their catalog list a few different cartridges for the 20 ga. .38 Special squib loads would be as powerful as I would go though.