Something to consider getting is the EZ Rachet breechplug tool, as it allows you to remove the breechplug without loosening the rear action screw, thus eliminating a possible move of POI due to shifting. I have never noticed a shift in my sav, but have one on order. You can get the info to order one, if interested on the link I post earlier to Dougs Message Board. They are a little spendy, at least I think so, at $43 and change, but seem like a very good thing to have if accuracy is especiallly important to you.