Some shooters suggest that the biodegradeable targets are harder to break than the older ones.

If you watch good skeet or trap shooters, especially if the skeet guys are shooting 12's or 20's, you will not see very many breaks where there are just--as a shooting friend says--"the minimum number of pieces". You'll see a lot more if someone's shooting a .410--which makes sense because of the reduced # of pellets in the pattern.