One of the strongest broadheads I have ever encountered is the Montec G5's. Made of SOLID STAINLESS STEEL & 3 bladed. I tested them against others...many others...and found they even penetrate a 1/2" thick piece of steel ~3/16" and could be used again (without a very sharp point however)! Where as ALL of the other multiple piece broadheads tried (with the exception of Interlock) virtually disintigrated on impact. The Bone Buster broadhead stuck too.