Shoot one shot and 'feel' the bbl temp.
Shoot a second shot within say 30 seconds.
Check the the temp again. Note the difference.
Do your sight in spacing the shots.
After you are zero'd wait to when the bbl cools to what it felt like after the first cold bbl shot you should be good to go.
The sad part is that it will take longer than you would like.
Then one shot a day for a couple of days and you should be good to go . . . or . . . not.