I've practiced with both and used 348gr Aero PowerBelts and the PR QT sabots on hogs.

The PowerBelts offer good accuracy - the DCs & QTs, EXCELLENT accuracy.

On hogs, the PowerBelt blew right thru both shoulders and never expanded a bit. The 350gr QT when in one shoulder and lodged under the skin of the opposite shoulder and expanded to over an inch in diameter. Here's a pic of the QT remains: QT results This was pushed by 90gr of loose 2fg 777 Powder.

Both bullets put porky right down on the ground............................but I sure prefer to see the classic mushroom to ease my worries about good stops on game.