Not at all. Two entirely different critters. The 30-30 is a 200 yard gun with good stopping power. The 243 is a long range shooter and not as good on deer size game as the 30-30 within it's range limitations. For those 100 yard shots you take the 30-30 is a better choice IMO. I have killed plenty deer with a Model 7 243 but just love the 30-30. Everyone should have a least one 30-30 and a Marlin to boot.
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