The only thing I know about the Disco is that it's a new PCP that also runs on CO2. I think the main reason most guys don't typically shoot springers at 50 yards and beyond, is that the rifles are power limited to around that range. The most powerful spring piston guns might get close to 30 fpe. At that power level, they can be pretty brutal to shoot, and can be really hard to shoot well. At least that's what I found when I had an RWS 350 .22. On top of all that, it was pretty damned hold sensitive, at least for me. And finally, even with the magnum springers, most of them just don't have enough power to handle the heavier pellets. Of course, this is all my personal experience and opinion, I'm sure there are people on this forum that will disagree with me :-).
I gave up on springers, now I'm strictly a Dark Sider. My Talon with the 24" .22 barrel will send Kodiaks down range at 1000 fps or more, although I usually try to keep it closer to 900. And my .177 B50 will do the same thing. Paint balls at 50 yards are a moderate challenge with the Talon, don't know about the B50 yet, I'm stuck shooting indoors as my outdoor range is under 3 ft. of snow, and I haven't had it that long. Unless you really enjoy frustration, if you're serious about shooting an air rifle at longer ranges, get a PCP. Like I said before, that's just my opinion, hope it's some help. Later.
Dave
