I had the range to myself once and was shooting my model 70 in 300WM that has the ported boss. I came back to the bench after checking a target, noticed I had one more shell from a box, and decided to throw the last one at the 500 m gong.
Well, holy [bleep]! I damn near shat myself as I had forgot to put my muffs back on! If anyone has a non ported one laying around I will buy it......
