Has anyone put one of the red dot scopes on there shotgun. I was thinking of putting a Tasco Red dot scope on my Mossberg 12 ga, which I mostly use for deer (i have a rifle barrel). I had a fixed old busnell scope which messed up. This year each time I went hunting I stumbled upon deer and they got the jump on me, so I have read that the red dots are easy to focus in on, any takers or advise. thanks guys.