I've been using a fixed 2.5 power tasco scope on a quick detatch scope mount (bolts into where the trigger assembly pins go) a long time. It works just fine, but I change barrels on my 870 depending on seasons.I have it sighted in perfect right now for my slug barrel. This spring I'll need to waste a bunch of shot to re-sight again. Anyway, I'm thinking I may just want to get a different scope this year so I won't blow so many rounds each spring and fall. I don't want to break the bank either, something inexpensive and functional is what im looking for. What do you use and why, and any recommendations?? Thanks