I've been super happy with the Matrix bullets but we've only shot the 270 cal 165's and 175's, going to run some 6.5's and 30 cals next year. Availability has been great, order on Monday shoot them that weekend. Quality seems good, though I don't tend to be the type that sorts through bullets, the first couple hundred were so good I stopped measuring.
The meplats are very uniform compared to other similar bullets which I think made a huge difference for hunting, jacket is a J4 so they are very similar to the Berger, seem to be super mild to load for and not picky though the design is not as aggressive as some.
BC is lower than calculated but that's no surprise, the only thing it's useful for is to give a guy an idea of how the bullets compare to each other within a line. It would be helpful if he included twist rates.
This year between me and a couple buddies we put 12 on elk and 5 on deer if I remember right, from 85 yards to 865 yards from a 270 WSM and a couple 270 Wins. All wound channels were very consistent no matter the angle of shot, up close they did well but did come apart but no evidence that you could make one splash wound, even the closest shot on elk spine they obliterated two vertebra. On the longer shots basically puts a hole in and a 2-3 inch hole clean through them. Both shots at 865 went clean through with ease, the second hit went through the lower on side shoulder cleanly braking it and blowing a hole in the lungs and exiting in front of the of shoulder.
The only 7mm I have after getting a 270 WSM is a 7mm RUM but with the 270 and the 175 Matrix it's just not worth loading the 7RUM unless I could get my hands on a pile of 200gr Wildcats. But for now my WSM out performs my 7RUM and doing it with 20+gr less of Retumbo. May try the 190 Matrix but they would have to shoot super good to get the RUM any field time.
That my 2 cents!