07-19-2014, 02:54 AM
That link is a great reference. (Now, for my stupid question.). Why can lead-free bullets achieve the same effectiveness at 60% of the weight of lead-based billets? Is it due to weight retention? (That doesn't seem logical.). Since energy transmission involves both mass and velocity, I don't see how the much lighter all copper projectiles would be as effective. Is a 90-100g TSX really as effective as a 123-125g SST/Partition on whitetails (let's assume Midwestern deer - 175-250 lbs)?