Heed the warning!!! My sons and I were plinking out back with the CBs and I had to run in to answer the phone. We were using an old single shot .22 with a full lengh barrel. After a few minutes my eldest came in and said he was having a problem hitting anything with the CBs, and they were louder than normal. I fired one round and hit about 4 feet to the left of a target that was only 10 feet out, and it was louder than normal. I looked down the barrel and could see nothing. A ramrod pushed out three CB bullets. When you fired, the end CB would tumble out, and the new one would join the pack in the barrel.
Now we use a youth model gun with a shorter barrel. We also switched over to Super Colibri made by Aquila. I like them better than the CBs. And even better, squirrels hate them, don't know if its the bullet or they have a heart attack, but they die. Super quiet. (My pellet gun is louder).
enjoy
fred