hey, y'all ! finally triiggerd a few rounds the other day and was pleased with some promising groups from my bc carbine. at 30 paces it gave me 2' to 2 1/4' groups with the open sights and my aging eyes. sure good enuff for casual plinking and, with some load tweaking, minute of white-tail out to 75 yards or so. past that she'll have to wear glass. with the last three rounds i was 3 for 3 on a 1lb coffee can. BTW, i notice on the rear sight a slot and screw that look like they might accept a sight blade of some sort. any body have any info on that or is it just part of the animal? thanks, dinger