Thread: Typical cold/clean bore effect?

So what kind of cleaning are we talking about? Is the recommendation to not remove any carbon fouling at all after a range session and just put the gun away as is "until next time"?

Curious as I don't seem to experience this cold clean bore effect in my rifles and I do my best to get the carbon out after a shoot. I read in an old NRA target shooting manual that your cold bore shot should be inside your rifles grouping, ie it shouldn't sit outside of say a 5 shot group at 100 yards.