Thread: Cause of split groups?

double group = bedding
USUALLY
what happens is the barrel /action is sitting in stock,here for couple of shots,then it moves to its "other happy place" and shots go to other place
oversimplified explanation for clarity.
my old 308 used to clunk at random times..drove me nuts till one day held barrel and stock and realised could move them about 2mm back n forward...it had absolutely zero bedding.