I have a pretty set routine. I go to the range at sunup, that way there is usually no wind and it is cool. After set up, I shoot 1 fouling shot(because the gun is always clean afer the previous range session.) Then I shoot 1 shot, get up and pick up and inspect the brass and replace it in the box. Then I write down the chrono numbers and settle in for the next shot. That is repeated till 5 shots are made. Then I walk to the line and record data on the target. ie powder, bullet seating depth etc.
Then I pull out a pistol or other weapon and shoot a magazine or so and then repeat the 5 shot process. After the second or 3rd (depending on how new the BBl is) 5 shot group I clean the BBl instead of shoot another weapon. It takes me about an hour to shoot 4-5 different loads but the barrel is never ever hot. It is never more than warm to the touch.
Works for me and I don't have to dump anything down the barrel. 
