I don't own that model but my three LK-II and 93, I feel the same way about. Really for shooting sabots it is all the rifle I would need. I never shoot over 100 yards and my LK, even with a 2x20mm scope off a good rest, I can do that.
That MK of yours is a great shooter. And that load your shooting will stop anything I would want to hunt. Was this with a scope or open sights?
I was thinking of shooting today, but being Thanksgiving (Happy Thanksgiving everyone) it is deer season and I would hate to ruin someone's hunt because of me blasting away in the back yard.