This thread is getting some great mileage! I continued my "testing" last week. Killed a nice Fannin Ram at 150 yards with the 6.5 PRC with a factory 143 ELD X. I got a bit of a "splash" hitting the ram quartering away right behind the last rib. Opened up a baseball sized hole, but it was like he was struck by lightening. Bang, Flop, (feet straight up in the air, roll a 1/2 mile.
Also killed a caribou. The caribou was a better test of this bullet. He was 485 yards totally broadside. First shot hit him back, passed through the stomach and was mushroomed perfectly in the off hide. Second shot hit right behind the front shoulder with a small entrance and quarter sized exit. Third shot hit him in the neck, passed though and sent him rolling down hill. He was dead on his feet after the second shot. I've killed a bunch of stuff with the ELD X and a few with the ELD M. The two bullets perform a bit differently, but both have been killers for me. I will continue to use the 180 gr. ELD M in my 7 LRM and the 143 ELD X in 6.5 PRC. I've been trying out the 162 gr. ELD X in my 28 Nosler and the 168 gr. ELD M in my .308. However, I will be on Kodiak next spring hunting the big bears with TTSX via the outfitters recommendation.