turkey scope, any feedback on these? I'm thinking bout goin that route, but I need to find out a lil more about how rugged they are. I'm shooting a 23" 870 SM shooting 3-1/2" shells, so I need something that'll hold up. I've had a tru glo tru brite holo type sight before, and it didn't cut it. I can't see the f/o sights and the turkey's head at the same time ( bad eyes), so I'm down to putting glass on my shotgun. Also heard Nikon makes a pretty good one, just want the toughest one for my money, because if it won't hold zero, ain't no use in havin it. Thanks y'all for any info.