I only have one 30-40 Krag. It is a custom rifle from Johnson Automatics. I picked it up from a Pawn Shop and shot it a few times with reloads. It shot great. I then started to research its history. Below is a post from Ed Johnson, who is Mel Johnson's son. Have not shot it since then.
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Posted October 18, 2009 · Report post
Very nice photos. It would appear that this would have been a conversion of a Springfield Armory 30/40 Krag action with Springfield rear sight plus new custom stock with pad plus tapered barrel....I think you said 30:06?.....and blued components with new front sight...maybe Lyman?
It would have probably been a custoer's rifle conversion, done by my Dad's factory and not the subsequent "associates" group. Not sure of value but it would be pretty rare....call it perhaps a "one of a kind."
Ed J
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Pictures and other information can be found at:
Forums - Johnson Rifle Site Bulletin Board (johnsonautomatics.com)
https://johnsonautomatics.com/messageboard/
By the way, it is chambered for the 30-40 Krag round.