I will be testing these out next season. The 170's out of a 7.5 twist 7 Sherman max, and the 151's out of a 8.5 twist 7mm rem mag, and maybe another one that will remain un-named at the moment. I will give them an transparent, fair, varied and unbiased chance. Should include a few elk, a few deer, and a bunch of pronghorn.
So far we have only taken one animal with them, a yearling calf elk with the 126 .277 bullet. Was shot in it's bed high shoulder, and did not get out of it's bed, entrance and good sized exits, two different holes, my guess is from the nose petals. This is only one animal, I won't pass judgment, good or bad, on any bullet after just one animal, I prefer about 10 or more, so I'm still open on them. This next season will speak the truth for me. I'll likely make a thread with bc testing, load data, and terminal performance reports for them like I did the 147 eld-m's and the Badland Precision Bulldozers (which I will be testing the .338 250 Super Bulldozer 2 out of my .338 NM this next year as well).
Communication with Josh has given me no complaints so far, he has been responsive to answer questions and willing to talk. I have only worked with him on the bullets, no gunsmithing stuff, so I cannot speak for that. Not discounting anyone else's experience, just stating mine.