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Ruger Blackhawk Convertible

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  • 2xbyu
    The first 45 blackhawk 7-1/2 convertible was manufactured in 1971. About 5760 Old Models '71- Jan.'73. S/N 45-00111 - 45-23030.

    The first New Model 45s came out in 1973 starting with S/N 46-00001. The first NM 45 convertibles started at about S/N 46-05874.

    The 45 convertibles were made in cat. #s:
    "44"== 45 cal with 4-5/8" barrel
    "455"= 45 cal with 5-1/2" barrel
    "45"== 45 cal with 7-1/2" barrel

    "X" = with extra 45 ACP cylinder

    "BN" =blue blackhawk new model
    "KBN"=stainless blackhawk new model

    Your BN-45X S/N 47-510xx made in 1992 would fall into the post "Liberty" model era with "Warning" rollmark on the barrel. This era, starting at about s/n 46-42174 - 47-60376 early 1978 - 1994 when this model was discontinued. Quantities; BN-44X = many thousands; BN455X = a few thousand; BN45X = several thousand; KBN-44X = 355 guns; KBN-455X = 77 guns; KBN-45X = 320 guns.

    Ruger never offered a 45 blackhawk in 6-1/2" barrel. I think blue book is a mis-print for 7-1/2.
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