Been thinking of starting my first build. Not looking to build a top notch rifle just doing this one to learn on and have some fun. So I have a few questions I am hoping somebody can help me out with. I am pretty handy with tools and am a welder for a living so making tools is not beyond my skill level either. So question one I understand how Savage model numbers work ie 10, 110, 11,.... My question concerning these is, is there a difference in barrels between the model numbers? And for simplicity lets leave the WSM cartridges out. I know they have different thread size. Can a Wheeler action wrench #2 be used on a model 11,111, 12? Or just the 10/110 model? Same question applies to the barrel nut as well. Same wrench? And lastly (for now) how do you keep the recoil lug plumb with the action? Thanks in advance!