I have an OLD model 80 Marlin that I used to hunt fox squirrels with cb caps until CCI came out with CB longs in the early 80's. I tested them on a 15 yd target tacked to the end of a piece of firewood. I fired a three shot group with a receiver sight and went to check. I was really dissappointed when I only found one hole. I couldn't imagine how I could have missed so I split the wood and found all three welded one behind the other. They make less noise than an air rifle which doesn't disturb other squirrels and the 29 gr bullet does nicely on either head or lung shots without any meat damage. I still have the first bullets and will post pictures as soon as the wife sets up her camera for me.