I as well as one of my sisters can 100% attest to the effectiveness of the CF Lehigh bullets. 3 or maybe 4 whitetail (can't quite recall all her kills lately) for the baby sister with her TC impact. She is still using the bullets Grouse sent with that impact I do believe. I myself bought some for the smokeless front stuffer and also for my TC. Dropped a few whitetail, 2 elk and several hogs with them. Pretty much perfect terminal performance. Pass through on every animal and pure destruction of tissue internally. Ended up buying a couple hundred so I wont need any more for a long time but if those SSK have the same or better performance level as they did/do under the Lehigh Defense logo then I would and do happily endorse them.