The Round ball at .527-.530" diameter will weigh 230 grains. It is a heavy ball, and expands beyond that size on hitting flesh. A 60 + caliber ball is to be expected to be recovered it it stays inside a deer or similar sized animal. That round ball kills Elk easily.
The only need you might have for a Maxiball is if you are planning to hunt moose, or bear.
As far as accuracy, the Round ball can be shot very accurately in your rifle, mainly because it does not bruise the shoulder as fast. Make it the main diet of your gun and do some penetration comparison testing with some other favorite deer cartridge. You will be happy with the results. Save the use of maxiballs for when you are going on that once in a lifetime hunt for truly big game, and want to use your ML rifle to take the game.