By David E. Petzal
One of the many reasons I loathe summer is because rifle barrels heat up fast and make your shooting more difficult. Every time you squeeze that trigger a flame of between 4,000 and 5,000 f goes streaking up the barrel, and in two or three shots, two things happen: Your barrel warps (target-weight barrels usually will not do this) and the mirage, or heat waves, rising from the barrel give you a false picture of where your target is.
How hot is too hot? Rifles vary in their tolerance for heat, but as a rule of thumb, if you can’t grasp your barrel in a manly handshake and hold on, you’ve gone too far.