by gab » Thu Aug 29, 2013 5:48 am
No they were not a felt cleaning pellet. Here is some information I found on the Pyramid airgun website.
When H.M. Quackenbush brought out his popular line of airguns, he also made darts for them, and that was considered their best ammunition. Later, he brought out several different types of ammo for the same guns. Cat slugs were solid lead cylinders with felt glued to the tail. The felt acted like a modern diabolo waist and flared skirt, creating high drag that kept the slug on track. Later still, some H.M.Q. guns were made to fire modern diabolo pellets and lead balls. Once, again, they were never very fast because of their roots in a dart gun design