7MM Short Action Ultra Mag
If you are getting 1/4" groups @ 100 yards free floating will not improve your groups. It will change your point of impact and make the rifle less likely to change point of impact with varying weather conditions. The problem you are experiencing appears to be a stability problem. I would try a different bullet. I had a similar problem with a 243 and when I swithced from Serria to Hornady the problem went away.
Good luck and good shooting.
If you are getting 1/4" groups @ 100 yards free floating will not improve your groups. It will change your point of impact and make the rifle less likely to change point of impact with varying weather conditions. The problem you are experiencing appears to be a stability problem. I would try a different bullet. I had a similar problem with a 243 and when I swithced from Serria to Hornady the problem went away.
Good luck and good shooting.