matt068
Petals breaking from the sabot is normally not a problem at all. By the time the petals are breaking, the sabot has long cleared the bullet. This is pretty normal especially with the thinner sabots.... The sabots are designed to come off the bullet as soon as possible and at the velocity they are traveling the drag created by the opening petal is considerable force the lays the petal most of the way back causing them to break off.
Hornady is under contract and supplies most of the bullets that are packaged under the TC name, so when they look the same they are... MMP is under contract to supply TC with with their 'Mag Express' sabots.