I'm not familiar with the 336CB, but if it's a full size 336 action I can't see any reason not to shoot the .375's through it. I'd ask over on the marlin site:

http://www.marlinowners.com/board/

The 336 cb could be a slimmed down version of the 336 action or barrel or have some other change that would make it unsuitable. However the marlin .375 was built on a plain vanilla 336 action.

Weagle

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