The single shot Model 12's utilize the Savage Target Actions while the 10 Series uses the standard 110/10 style action. The 10,11,14,16 and the 12 Series Varmint models differ only the features built around the Action such as Synthetic vs. Wood vs. Accustock, factory trigger vs. Accu-Trigger and varying barrels types/lengths etc.. And since you are just using this for paper and maybe other targets out to 200 yards 90% of the time. I would agree with HoTolds and just grab a HogHunter which can be had for as low $420.00 or a Model 11 TH for a little more and ditch the stock, trigger, barrel and have some fun and rebuild a rifle you will be proud of.