Well from my experience ever gun is different as you most likely know that already to.
But here I go.
For example my Rem 7mm my FAV gun.. if I do 3 to 5 shots groups it stays accurate as long as it cools down or even gets cold. But if I clean it!!! look out here come the flyers. I will not be on target next time I go to the range till at least 2 or 3 shots are put through it some guns like DIRTY BARRELS even if there cold...
I have talked to many shooters that have to shoot as many as 10 rounds through their guns most about 3 to 4 before they get back on target After Cleaning.
My 243 Rem model 7 is great cold and clean starts to get flyers if it gets to hot.
My 300 Rem Win Mag needs around only 1 or 2 shots after cleaning to get back on target.
I am shooting all match reloaded rounds and I even noticed that velocities are different after cleaning they are always slower the first few shots after cleaning till that barrel gets dirty and warms up again.
I shoot alot before season but when I know its going to be my last time at the range I will not clean my gun till after season is over and I only shoot 3 or 4 shots that last day at the range just to dirty her up again
So with this in mind know your gun.
Hope this helps you out.