I've got an older A series 9mm carbine that, with a red dot sight, simply won't hold zero. At first, I thought I had the stock screws too tight (which I did, as I was getting some failure-to-feed malfunctions that cleared right up when I loosened the screws securing the receiver shroud) but that didn't help. Tried some newer ammo too, but I really don't think that's the issue. It *could* be the red dot, but I'm having a hard time believing that because this same red dot used to sit on a scout mount on a Ruger Mini-14. I figured if it could tolerate a 223 it ought to tolerate 9mm in a carbine.
I'm going to remove the red dot and try to zero it with irons to rule out whether or not it's the scope, but I was wondering if anyone has had this sort of problem before?
Basically it would group consistently for three shots or so, then POI would shift significantly. Frequently, this would happen after I adjusted my red dot. And no, I'm not overadjusting. Sometimes adjusting my scope to move POI to the right would move it left; other times, and adjustment that should come out to be about 2 inches down at 50 yards end up being 6 inches down at 50 yards.
It could be the stock. I got my 995 second hand, and it was originally someone's truck gun. The stock is beat up pretty fair in spots. Might get the ATI replacement for it if the irons won't hold zero.
I really hope it's just my red dot. When it is grouping consistently, it will literally tear one ragged hole in the target at 50 yards!
Has anyone else ever had problems similar, or is there something I haven't thought of that could also be the culprit?
I'm going to remove the red dot and try to zero it with irons to rule out whether or not it's the scope, but I was wondering if anyone has had this sort of problem before?
Basically it would group consistently for three shots or so, then POI would shift significantly. Frequently, this would happen after I adjusted my red dot. And no, I'm not overadjusting. Sometimes adjusting my scope to move POI to the right would move it left; other times, and adjustment that should come out to be about 2 inches down at 50 yards end up being 6 inches down at 50 yards.
It could be the stock. I got my 995 second hand, and it was originally someone's truck gun. The stock is beat up pretty fair in spots. Might get the ATI replacement for it if the irons won't hold zero.
I really hope it's just my red dot. When it is grouping consistently, it will literally tear one ragged hole in the target at 50 yards!
Has anyone else ever had problems similar, or is there something I haven't thought of that could also be the culprit?