Decent scope under $100? Visit www.natchezss.com
and find the Weaver 40/44 scopes, then look for the 2.8-10x44 aspherical one....price is at $100.
Then visit Graf and Sons and find the BSA Majestic DX Hunter scopes. Graf is selling them for less than anyone else. Own three of the Majestic DXs and they've been pretty decent for me. Often go to to range with one of the rifles with a Majestic on it. Lots of rounds fired with my Majestic scoped rifles, with no problems. Grafs has the 4-16x44 SF for around $80, when others sell it for around $125. Lower powered majestics cost less, but not a side focus parallax.