Originally Posted by Freebore
How is your trigger set?
On my rifle before I had it adjusted with the correct overtravel/poundage I was all over the place too. It took my groups from 1.5" to <.5".
Is this thing thumping you or do you have a good Limbsaver recoil pad or brake?
There seems to be left and right in your group. I don't know your experience with heavy magnums but big 7's have a 'bite' to their recoil.
Addressing these 2 things can improve your accuracy immensly.
I never really looked at the group before, but after your comment looked at it a bit and it looks just like some my 7stw put up when I was letting it hop around a while back. I was irritated at other things that had already been worked on with the rifle and not watching what I was doing.
Do you have another shooter you trust near you you could have punch a couple of groups off for you?? I had my Dad come out to the range with me to "prove" the 7stw. He settled in and punched a 5 shot .65" 100 yard group with a rifle that lately had been putting up 1.2 to 1.5" 15 shot averages. I settled in after he proved it was me and immediately dumped a .9" 100 yard group.
Often if gets in your head that a rifle isn't any good, and you stop really trying to make the rifle work for you. That's a good time to have someone else step in for a group or three or simply watch what the rifle is doing as it recoils on you.
If the recoil motion isn't similar every time, the accuracy will suffer. If the rifle isn't settled into the bags (or held the same way if freehand) every time the accuract will suffer. If the load isn't performing at your current temp. the accuracy will suffer-- that was also happening on the 7stw. Two of three loads were performing at some temps and not others.