I have been shooting my new BC the last couple days. I cant get my rear sight any higher to shoot long range 200yrds is about as far as I can shoot the sight can't adjust any higher, what can I do to get them so I can shot out to 400-500yrds Right now I'm loading 29gr of H-4198 w/405gr cast fn I know I can load it up hotter to get some more range but this feels like a good load I havn't shot any groups with it yet, but I'm hitting about the same place out in the feild each shot.