Yep a 10MM will handle most situations just fine but having the extra UMPHHHH of the Rowland would be nice in a lot of situations. The 230gr unicore bullet from the Rowland would probably handle elk just fine. The only time I think muzzle energy is critical is when you are using some of the energy to damage the bullet in order for it to do its job. This is where I believe the Rowland and even the super with a 6" barrel win the battle. reflex264