However long it takes me to walk out to the line to rehang targets and to reload mags. The barrel of that Daniel Defense AR is little affected by heat. It may not be a match barrel but it has proven to be extremely resistant and tolerant of hard use.it takes a little while to warm up you say?
How long do you let your barrel cool between target sets?
And yeah it takes me some time to warm up, you can shoot your best target first go after 4 weeks of no shooting?