I think discharging firearms in the city limits might be a no-no. My neighbors are several hundred yards away but a shotgun would raise a few eyebrows.

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Tony H
W111 280SE 3.5 Coupe
Manual transmission

Past cars:
Porsche 914 2.0
'64 Jaguar XKE Roadster
'57 Oval Window VW
'71 Toyota Hilux Pickup Truck-Dad bought new
'73 Toyota Celica GT

Even pellet guns make a noise. A Benjamin has a good rep. I think 7 to 10 pumps, and its almost as effective as a .22.

I did a quick search, the site was vague on details, no need to get way into search. My understanding is that a gas spring (won't fatigue like a steel spring), barrel cocked pellet rifle is seriously powerful - over 1200 fps is common I gather. Never owned one - someday. You can leave the gun cocked all day without loss of power. I think only one pump is needed but what do I know ...

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Te futueo et caballum tuum

1986 300SDL, 362K
1984 300D, 138K

That depends on the make of air rifle. They are making air rifles for hunting deer size game. Lewis and Clark had an air rifle on their expedition. Also, in the Napoleonic wars in Austria, if a person was caught with an air rifle, the were hung on the spot. I saw on of those at a gun show. It was a bit larger than a Kentucky rifle. Though yes, some of the air rifles have over 1200 fps. No expert here either. Also, the cost of some air rifles can be $$$.

Edit: I'd say these guys know what they are doing:
http://forums.accuratereloading.com/eve/forums/a/tpc/f/6511043/m/5411009152

Very impressive. Those aren't deer but they aren't mosquitoes either. And at 80 to 100 yards as well.

I had a couple of Walther CO2 cartridge powerd pellet pistols. I once dealt with a medium size rat with his leg caught in a rat trap, it was very much still alive and struggling. Couldn't get away, the trap itself had gotten caught in something is it pulled it along - I had the pistols nearby, I thought I'd make short work of it. Wrong. Did not begin to kill it. I crushed its skull with a short 2 x 4 instead. I think the muzzle velocity on those was maybe 4 or 5 hundred FPS.

Not sure if they describe the rifle in any detail. I don't have time to get into it now.

__________________
Te futueo et caballum tuum

1986 300SDL, 362K
1984 300D, 138K