Low and right sounds like you might be anticipating the recoil if you are a lefty or jerking the trigger if you're a righty.
- Are you right or left handed?
- Are you shooting from a 2 point rest?
- What ammo brand are you using?
I have a Marlin SS 1895 SS guide gun with factory barrel porting. The factory no longer offers porting but I think it is a very desirable feature on a short, high recoil gun.
I gave up on Remington ammo and switched to Federal. I also load my own with 300 grain hollow points. Here is a link to reloading data.
http://www.realguns.com/loads/4570.htm
If your gun is a Marlin you might be interested in this website.
http://www.wildwestguns.com/index.html I put their ghost ring on mine.