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What is not to like about a 2 inch cutting diameter?
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Larger cutting diameter? Is this a good thing or bad? It takes more energy due to the extra tissue cut and will result in loss of penetration. Properly placed and especially on whitetail sized animals, it will make little difference. Improperly placed, it might cut more tissue and help or it might cut more tissue and stop the penetration short.
I for one, do not think it to be a good thing. I think more times than not, it becomes a bad thing. If your shot placement is OK, it won't matter either way.