I picked up an el-cheapo red dot sight just to give it a try and was wondering, if I know that my sights are dead on at 50 yards could I just put the gun in a vice and look down the sights and adjust the sight until it is right on the tip of the front sight post? Of course I would have to test it to be 100% sure but at the moment with the ammo situation I'm a little hesitant to burn through any and am looking for an easy way to sight this in.