I have been really looking into these with great interest. I’m confused about something. My understanding is that this gun is very modular?? I could order a 30 cal then a 22 cal barrel and bolt probe kit and switch the 30 to 22?? What I don’t understand is that in 30 cal it will do 75 ft/lb. Why wouldn’t it be capable of that much energy or force in 22? Please correct me or help me understand ?