There is no real reason to. A quality 180 grain will penetrate as deep, and will probably have more energy. There is no reason whatsoever to use a round nose bullet, unless it is more accurate for some reason. You certainly don't have a tubular magazine.

The idea of a brush buster is a myth. All bullets that hit brush will deflect, and it is impossible to predict how much. A large heavy bullet may deflect less, but not enough less to actually claim some advantage. Tests have been done to confirm this.

At ranges less than one hundred yards, the differences in energy between the lightest bullets and the heaviest are pretty small if you load them all to the fastest velocity possible.

To sum up, the best you can say about that combo is that it has no disadvantages at those ranges. It just doesn't have any advantages either.

That said, it is your choice, do whatever tickles you.