I've used the 160's since they came out, I pretty much had to, since I asked Mike Sohm to come out with them and told them how I thought they should be. I've shot quite a few animals with them(wouldn't recommend them for water buffalo!), but I had excellent performance from them on lots of African animals up to the size of blue wildebeest and on a large mainland muskox. I haven't bought any lately, but when they first came out with the 160's I weighed them all and they averaged about 152-153 grains, Mike said thats as high as they could get them with out expensive retooling.