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I am looking for a new hunting rifle, and one of the features I keep seeing advertised is 5R rifling where there are 5 lands and grooves instead of 4 or 6.

Supposedly this makes the barrel more accurate because the lands oppose a groove instead of each other thus deforming the bullet less.

I have yet to see any solid evidence to back this up one way or another, and some say that the difference is marginal if at all.

Is there any good evidence or tests that 5R rifling is better than the traditional 4 or 6 land rifling?

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