Out of my 700 7 REm mag last year I shot a pretty good size doe for around here and it reacted like it would had it been a regular corelockt. DRT . I was pretty impressed on their accuracy at the range I thought it shot better then regular corelockts. Only reason I had thme at all was they were being discounted heavily at the local walmart only a buck or 2 more then regular corelockts so that is why I ended up with them. This is the interenet where 1/2 " groups are real commonbut my 700 did very well with them probably some of the best groups I have gotten out of one of them(700) in a very long time.