IIRC the more recent T/C sabots were the HPH-12 and HPH-24. Early sabots may have been the MMP Short Black but those are very tight loading. The powder side of the Short black sabot looks much different than the HPH series and its very short.

The 12 and 24 look very similar but there is a difference in the powder side.

Ignore the color. Both are normally black. Sabot on the left is a HPH-12. Sabot on the right is a HPH-24. The number on the HPH-24 looks more like its been typed or stamped. The number on the HPH-12 looks more like it was etched into the mold.


I believe the most recent production T/C 50x45 sabots are the HPH-24s. The others would be very tight in newer T/C bores.