The barrel internals are a little different in between the maxus and my SX3 but shooting a 8x9 stacked 2 ounce load in my sx3 with a .665 Indian Creek resulted in a extremely dense pattern, I think I had 370 in the 10" but a sparse 20", I opened mine up to a .690 Hastings and ended up with a more even 10 and 20 inch pattern with a slightly more dense 10 inch center core, 315/ 270, but I also went to a 2 oz. Load of straight #9 to get those numbers.
