Hi! As I stated in my intro for all my hard-earned knowledge of modern centerfire firearms I am often a bit baffled by the huge leaps in the airgunning world (of which I have only recently become aware). So as to avoid deluging everyone here with an avalanche of questions I will try my best to space them out one at a time. So, question number one: As I said, I am a total newb to the world of modern airgunning and so I've been attempting to get myself up to speed so to speak. To that aim I have begun to first familiarize myself with the various types and charging mechanisms, etc. One distinction that I have not been able to determine the correct nomenclature for (assuming it exists) is whatever "category" (for lack of a better word) air rifles that chamber an actual bullet - versus a pellet - fall into. The various airgun outlets online do not seem to filter these rifles - e.g., the Benjamin Rogue - into their own group, and even searching online for "airguns(rifles) that chamber a bullet of slug vs pellets" produces pitiable results. This would seem to be a significant enough distinction to warrant it's own "category" so to speak, so what is this newb missing? In fact, I found that other attributes that I would have thought significant also seem to be elusive; muzzle energies, velocities, (actually, Pyramyd Air does classify air guns by average maximum velocities, but it doesn't seem common) etc. As my primary interest at the moment is rifles chambering a bullet I find this to be a hindrance. Any chance of enlightening this newbie? Thanx!