Whats the average number of shots you can take before the barrell gets too hot and affects your accuracy? I ask as I bought my first gun ever a T/C Triumph BC with a Redfield Revenge scope and after getting 1 1/2 to 2" groups at 100 yards I wanted to adjust the scope so that they were actually hitting the bullseye not 1 up and to the right as they were. It was at this time after about 18 shots that the accuracy went south. I called it a day and left because I had an idea of what might be happening and didn't want to be chasing my shots around the target.

The temp that day was mid to high 80's, slight 5-10mph breeze and duration between shots was probably 4-5 minutes. Shooting 100grains of triple 7 and T/C 250 grain Super Glide Shockwaves, yellow tips. Barrell was cleaned after every shot.