So I had a conversation with a guy at the gun shop about rimfire rifles. He said the longer 24” barrel is/can be less accurate than a 20” barrel (I was talking about CZ-USA models). His reason is that a .22LR powder is already burned and the extra barrel length is unnecessary in a .22. Also, a longer barrel can affect accuracy if you wander off the target just bf your shot. That is, the longer barrel accentuates the “wander” by the extra length. And the added length adds to friction on the bullet. Of course, we are talking about four inches; is this really a “thing?” Discuss.