“Fear thou not; for I am with thee: be not dismayed; for I am thy God: I will strengthen thee; yea, I will help thee; yea, I will uphold thee with the right hand of my righteousness.” ISAIAH 41:10
3-5 shots a year, 2 minutes apart is generally all I need for hunting. If it goes well, that includes the animal. I got no problem with barrel heating.
What are you doing wrong ? ( if the rifle/ loads have been rung out already ).