Uncle N, but how do they perform on the animal? A while back I tried the much hotter Copper Solids. They kicked like a mule, caused my ears to ring, and the deer ran off like rabbits after being hit shot by my hunting buddy and me. After an unusual long tracking and recovery, our butcher confirmed how they actually performed poorly on the animal. The slugs peeled apart (poor slug weight retention and penetration) and broke into four little pieces and were scattered about in the animal some just under the hide. After that hunt we went back to the standard sabot slug and resumed the experience of a much better impact with the delivery of some solid lead with proper expansion to the vitals and beyond (usually a devastating exit wound) and more often the animal dropping on the spot. That's when I learned my lesson that it's not about kick flash and noise, but rather how the bullet performs on the animal. Since then I've been told that Remington has improved their Copper solid sabot slugs, but I'm sticking with what works for me. There will always be new stuff coming out, but it's not always better than the stuff that's been around.