In that price range, the options for bullpups is obviously limited. Have you looked at the Hatsan USA website? I believe the Hatsan Bullboss woodÂ
que, is $550 brand new(.25), and if you look at the refurbished part of the site, you may have a couple of choices like the .30 cal that is very accurateÂ
out to 100 yds. It's also $550 new but not a bullpup. The Sumatra is the most versatile overall and worth getting as its like having a few rifles with the
power dial and wide range of power. On low, its like shooting a German Springer, and on high power you can shoot a 57 grain hollow point, with
103 fpe, like a .30 cal. All the best.