I'm new to this sport and know nothing....so take it for what it's worth. I researched heavily and did this.........
1 shot clean (3X)
3 shots clean (3X)
5 shots clean (3x)
I have a Tikka T3 Lite in stainless.
It doesn't foul very much now. I've shot 60 rounds and got very little 'blue' when cleaning. Shoots great.
If I had my time back..I would have been even more methodical on the shoot clean thing...but I am still not convinced of the reason why.........better safe than sorry.
Oh, I wanted to say, I never brush any of my barrels...patches only..and I use a patch worm. If you stay on top of your cleaning and use good stuff (Barnes, 7.62 etc.) this seems to be more than enough. For my brothers neglected barrel I had to resort to a brush...but used it 'properly' and with respect.