I bought one from bp just like that, I didnt like the small sight window and not very much magnafication. If you buy it, sight it in at 20yrds with regular bird shot then make adjustments. Dont use the expencive turkey loads, until you get the dot in the center of the pattern. Then move out to 30 or 40 yrds. But keep in mind that 30yds through that red dot wont look the same as a regular scope! Thats my 2cents, Good Luck!