Wts: unknown cartridge adaptors??( nj)

[salpal48]

I have 2 adaptors for sale. i have no clue what they are used for. i am finished trying to figure them out. the smaller one is steel and has a 308 base with extractor groove.. The second is heavy brass . Appears to be 410 shot shell.
Both will chamber a 22 short but both do not have off center Chamber for rim fire. the 410 has a recessed Chamber ?. price $20.00 shipped. for both
Post and pm If interested
any payment ok
Paypal preferred
Check , Cash Ok
please review the photo
any Clues helpful

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[Mr_Sheesh]

The 308 one might work for someone with a 308 barrel in a Contender or the like then? Recessed chamber would mean you could have a floating dela that moved the firing pin hit from centered to the rim, maybe?

[Rio Grande]

The steel one is part of a USGI adapter assembly... the one on the right in the first photo in the link...

https://www.americanrifleman.org/articles/2016/4/3/cartridge-adapters/

[Mr_Sheesh]

Hmm I have a side question but this is a For Sale thread so I'll "be good" and ask that later and elsewhere :)