I bought a .177 Discovery to mess around with.
Well...the trigger is terrible. Lousy stock. crummy airsoft type sights. Not very good engineering in the barrel/breech attachment department. The pump is actually way better built than the gun.
When I cleaned the bore, I could only see a faint trace of rifling. I slugged the bore and it stuttered and scraped all the way through except for the last 3 inches...where it didn't even feel any resistance.
I tore it down and deburred the whole thing.
Put it together and shot some groups with open sights at 25 yards.
And...
I could not believe the thing would shoot that good. About 1/2" groups.
I put a cheap 6X scope on it and shot it some more. The dang thing shoots really well...crappy trigger and all.
Not as good as my benchrest Anschutz 8002 mind you, but I am really shocked at how good it shoots.
SO... I think it's a good deal. Parts are cheap (I ordered a new barrel for it and it was total $12.87 including shipping. I'll see if it looks any beter and if so, I'll swap it out.
It seems to shoot best at around 1800 psi down to 1100 or so psi. Then 50-60 pumps and it' back to full fill. I also have a scuba tank to fill it.
Look at that website link above. There is lots of info on there about the rifle. Some good...some bad. If I had looked at the rifle closer, I would never had bought one.
Hosé R