I switched to SSTs several years back because they were pointy or had a higher BC...I went through several tests with them and PowerBelts and the 300gr Barnes...The SSTs shot flatter in the powder charges that my gun prefers which is usually 80-90grs of FFF Goex...

I never had a problem with the SSTs coming apart, but, my load was 85grs of Goex FFF...After killing several deer with them I went back and compared the 300gr Hornady .430 XTP and found that at 150 yards, using 80grs of FFF Goex there was only about an inch or so difference in drop...The BC on those .430 Hornady XTP 300gr bullets is pretty good as well...

I went to the .430s in 300gr and killed 4 deer with them this year with no problems...My theory is a hollow point like the Hornadys will open up faster...The problem we had with the SSTs was lack of blood trails on lung shots and small exit wounds...I started shooting deer high in the shoulder and they would drop on the spot...But, behind the shoulder was where I didn't seem to get enough damage...With the XTPs, I shot 2 in the lungs and 2 high in the shoulder and they all fell or went less than 20 yards...

The Barnes MZs are great bullets, just expensive if you shoot a lot...