ORIGINAL: cayugad
One thing I want to mention.. some rifles have restrictions on the size of conicals you can shoot. At all times follow those recommendations. The 500 grain from Black Jack is all right. I shot a lot of them, but the maxiball are much more accurate.
Another thing about the Maxi-ball. It'llload reasonably easy, , pretty much guaranteed. You'll want to slug your barrel and make sure you order properly sized conicals if you are purchasing single diameter conicals from a custom caster.