Thread: Cause of split groups?

I sorted one for a fella the other day doing same thing in 300 win mag
Light weight strata first thing I would look out would be scope mounting and bedding
Use some araldite super strength or Devcon clear epoxy
On the side of the base screw thread with a tooth pick
Don’t put on the bottom of the screw gets into the action
And action threads and is a pain to remove
And on bottom of the base/rail clean up with some acetone or brake
Clean on a rag after it been torqued down
Heavier scopes and light rifles a lot of times loctite does not hold the best
After a while
Even worse when it comes to cerakote
Would try this first as cheap to check

Next be bedding the action like the rest have said with a 1.5” long pad under the barrel
With the rest free floated