Ah OK then
First, it is very common for manufacturers to overstate the real world velocity of their products with lead pellets one would normally use. The fine print will usually state " with alloy pellets " which are far lighter.
It IS possible to get that 800fps from a .22 but don't always believe what you read. That being said, 700+ from a .22 at 25 yards with a 16gr pellet gives you 13ft lbs of energy. Immediate end of grey.
Check out Scopes and Ammo ( Eric) as he sells some of the " Canadian Tire" rifles in PAL versions. Fairly inexpensive at sub 300 bucks or around there.
In that price range and power level I'd go for the gas ram rifles, commonly called Nitro Piston. They produce a smoother shot cycle and are easier to shoot well than a powerful springer, in my opinion.
D&L airgun out in BC is also great to deal with and has a great selection of higher end rifles like Weirauch. If you want German quality and don't mind paying for it they are spectacular. Not much change from a grand though and some are higher.
Diana is another great rifle you can't go wrong with.
Don't get all roped in by the highest velocity gun game. Shot cycle smoothness is more important, at least to some of us.
Although only a target shooter now, I've also been a life long hunter ( I'm 58) and still keep my licenses up to date. I've lost count ages ago of the rifles, pistols, and shotguns I've gone through. I've got the wrecked shoulder and wrist to back up my claim unfortunately. I look back and shake my head at always having to have the biggest and baddest, hand loading 300 gr .44 mag at 1350fps out of a 629...to put holes in a piece of paper 25 yards away.
Now I've gone the opposite way and can have just as much fun shooting kids BB guns from my couch on my 9 yard "indoor range" lol.
When the nice weather hits you may see a murdered out, very loud Dodge Challenger SRT8 going through town....that would be me