For general info, there's the James Kitching airgun forum:
www.network54.com/Forum/79537/One good classified site is the Brad Troyer pages:
www.airguns.net/One site specifically oriented towards target airgun {and smallbore} is the TargetTalk forums, with a classified section:
www.targettalk.org/ -------
The one Daisy Avanti I fired felt like a toy, it felt like junk even if it did shoot straight within 30 feet.
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Some specific rifles you might look for are-
...if you're familiar with the Baikal IZH-46 and 46M pistols, for a while there was a side-cocking rifle being imported, that was based on the same ~500 fps action. The diopter sights it came with were considered poor, but the rest of it was "workable" for club-level shooting. I can't find it listed anymore.
...previous to that, Gamo made a single-pump pneumatic target rifle, the model 126. These are from some years back, but someone migh thave one they'll let go if you ask.
...there was also a Chinese-made version of the FWB 300, the Tec Force BS4 but it doesn't seem to be available now-
(article on it)
air-guns-pneumatic-pnews.blogspot.com/2006/03/how-good-is-bs4-target-rifle.html Compasseco website, no longer lists it:
www.compasseco.com/index.php?action=category&id=1&subid=23(Tech Force also was selling a copy of the FWB spring-pistol for a while, too)
I'm not sure why you're put off by barrel-cocking airguns, but they can work extremely well. I have a Beeman RX , fired many thousands of shots with it and I've never felt the hinged barrel mechanism to significantly interfere with accuracy.
Weirauch produces the HW-50S, a lower-powered barrel-cocker spring rifle available with diopter sights, for around $350.
www.pyramydair.com/cgi-bin/model.pl?model_id=26 -------------
Heh,,, look! They're selling airguns with cans:
www.pyramydair.com/p/gamo-whisper-air-rifle.shtml(-I'd known about the barrel-shroud business, but not seen these before-)
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