@roadrunner we are talking past each other. Warm vs hot is irrelevant, if you want to shoot 1 shot per day to keep barrel cold that’s fine…the point is that if you did that 10 or 20 days in a row at the exact same target even under perfect conditions you would not have all shots go into the same hole— as you shoot more shots the “aggregate group” where all your single shots go will increase in size based on the bell curve I posted earlier. People are shooting large groups to have a statistically relevant picture of what that bell curve looks like for their rifle, because no 1 or 3 shots can represent that consistently. That is all done for the single purpose of being able to say what the maximum dispersion (the cone) of that gun is, to predict with a much higher level of confidence where any ONE shot will land.