I once had a Leupold M8 2X on a Contender, and did great work with it. A friend wanted to trade me a 4X M8 for my 2X, and I thought that a 4X would be even better for my uses. I was wrong, I couldn't seem to hit the broad side of a barn from the inside with the 4X and finally sold it at a loss to be rid of it. If you're going to hunt with it, consider a good red dot like the Ultra Dot. I don't have any first hand experience with the Ultra Dot, but it's been very highly recommended to me by people I trust.