I'm a Sako kinda guy, I have not had one that wouldn't shoot a half inch group with one factory load or another, the triggers are sweet to the degree they spoil you. They can be lightened up but they break so clean that I've not found the need. I had heavy barrel varmint models in .22-250, .243, and 6mm PPC, they all shot one holers with handloads. The two .243's I've had both liked Federal Match loads and would shoot cloverleafs with factory loads.
I recommended a .270 Hunter w/ Leupold 4-12x scope to a guy and that shot a dime sized group with the first type of ammo the guy got for sight in, again it was Federal. Now go with an Elite 4200 for a great package.
I'm looking at getting a new .243 or .260 in the heavy barrel with the set trigger. .243 is actually winning out because of availability of brass and bullets, plus I like the ballistics of them.