I have no suggestion because I don't own an Omega and never hunted moose with a muzzleloader. If the Omega shot conicals, I would suggest a 460 grain Bull Shop and a strong powder charge of say 110 grains, get within 100 yards and blow that chunk of lead into it. I would take my White Ultra Mag of course and do that.

Good luck with your moose hunt. Even a good Shockwave bonded should have good accuracy, excellent penetration and because of being bonded should hold together well, I WOULD THINK.

I shoot the Nosler out of my Black Diamond XR with 110 grains of Triple Seven and their accuracy is exceptional. But I never got a deer willing to test them for me yet.