One rifle not mentioned within your price range & worth a look if you can find one, is the Original/Diana 100 ssp.

The cocking method, although a side lever, is a bit "fiddly" but can be overcome by a simple mod.

A close friend of mine who was NSRA 10m British Champion in 2000 came out of retirement a couple of years back. He now uses a Mod 100 for bell target.
Shooting 3 leagues this season (22 match's) so far he has not dropped a point. He has also shot a couple of 10mtr opens & achieved scores of 570 & over ex 600 without any serious training, & all with a rifle that's never had a "spanner" on it & is over 20yrs old......Not too shabby eh!

As said by Robin, Try them all first, make your mind up, then it's down to the "Nut on the butt" ENJOY!