Me Too
I have the same problem with some guns, I shoot low to the left, consistent to the same spot. I just adjust the sights till I hit point of aim. I don't believe, in my case at least, it is a grip issue or a recoil flinch. If it was one of those issues it would not be consistent enough for me to dial it out with sight adjustment. I think it is an eyesight or sight picture issue.
I think on some level your eye is trying to achieve the same sight picture with different guns. Different guns, different sights (dots, bars, blades, posts, ramps) and your eye trying to do the exact same thing with all of them. I think for some of us your eye just gets it wrong sometimes, wrong but consistent.
I have the same problem with some guns, I shoot low to the left, consistent to the same spot. I just adjust the sights till I hit point of aim. I don't believe, in my case at least, it is a grip issue or a recoil flinch. If it was one of those issues it would not be consistent enough for me to dial it out with sight adjustment. I think it is an eyesight or sight picture issue.
I think on some level your eye is trying to achieve the same sight picture with different guns. Different guns, different sights (dots, bars, blades, posts, ramps) and your eye trying to do the exact same thing with all of them. I think for some of us your eye just gets it wrong sometimes, wrong but consistent.