I've shot several deer past 200 yrds with 250 gr. TC bonded shockwaves with the black sabot. 208,227,235,235,255,262,275,301 yards. All hits were complete pass throughs with good blood trails. Most rarely going more than 30-75 yrds. I use TC omega with the leupold ultislam 3-9x40 scope. 3-50 gr. Pyrodex pellets. The scope hold over dots are spot on. It shoots 2" groups at 250 yrds. Shockwave bonded bullets perform great for me. I bought a case of them.
I would use them on Elk but I might go up to 300 gr. Bullet.
Power belts would not group 4" at a hundred yrds out of my gun even with 2- 50 gr pellets.

I load my daughters Omega with 2-50 gr pellets and 200 gr shock wave. That must be the correct speed for that bullet, Ray Charles could track her deer. Unbelievable blood trails on her 5 deer. She is 13.