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"The 307 Winchester is just a bit too much for the Marlin 336 action. The problem is sticky extraction. Seattleloader has two Marlin 336 rifles barreled for the 307 Winchester by Mr. Nonneman and these rifles while very accurate, exhibited sticky extraction when loaded to high pressure."

You are saying that those cartridges are too much for a Marlin? Yet the Winchester AE used them for years with no problem. Is the Winchester open top receiver that much stronger then the enclosed bolt of the Marlin?

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