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It seems the thread has drifted away from my original ask. Any thoughts regarding a small bolt action receiver that would suit are appreciated.[/quote]
Any of the repeaters being sold that use and feed the 300 black out (since it is on the 221fb size case ) would be one to consider and just change out the barrel to 17 FB. Bill K
You might start by looking at the Howa Mini action in 300BO.