Well, I will tell you how they do on Moose here in a few weeks. On deer, I know they work better than coreloks out of fast guns. I believe you outfitter friend is working off of urban myths (or rural myths in this case). You know the ones around gun stores, local gas stations or whatever. I mean in alot of circles, I see alot of guns stores that still think the savage rifle is inaccuate and dangerous due to thier reputation they got 50 years ago. We all know that this isn't so.

Now the recovered bullets out of the large animals I have seen, did have about 60% retention, kinda like what they advertise. And out of 300Win mags, and Weatherby mags, I have seen, the jacket did seem to work its way almost off. But saying that you lost an animal due to a bullet. I would really think twice about trusting these guys. If you hit an animal broadsided thru the lungs (not hitting real high mind you) with coreloks, bullistic tips, sst's, failsafes, partitions, X, or gamekings, A-Frames, Scirrocos, bearclaws or whatever, and you can't recover the animal, you need to reevaluate your tenacity and skills for tracking, especially if your an outfitter.