Rugers
Get the trigger down to 3 lbs,(I put a timeny in my Mark-2 RL) ,you may have to float the barrel,as I also had to do this in my Weatherby Light weight,to get a better group,being a light weight ,ya need to let the barrel cool after 3 shots ....
A few years ago I watched a new Ruger owner struggle with factory loads in a 30-06 ....he got about a 5 to 6 inch group ,he asked me what I thought ,and I stated "If that were my gun, I'd sell it" .....
I gave him a couple of my reloads ,he made two shots ,and then just had to go see his target ....he had two holes touching"perfectly" at 100 yards,he had never done that before ,he was truly amazed ....come to find out his brother inlaw owned a gun shop,I just converted him to reloads !
The recipe that has worked for many an 06 shooter ...
Sierra 165 SPBT,
IMR 4895 powder, 45 grains.
Large rifle primer (any).
Give it a try what have you got to loose but diameter ! see ya BB