I understand, Savage has so many different models out that it's confusing to me too. Since I only work on/repair/build firearms & don't sell them, I don't have to worry about keeping up with all the different flavors of the Savage bolt action variations of the 110 type.
If the number is 2 digits (10,12,14), that means short action, 3 digit numbers mean long action (110,111,112,114,116). Other than that I'm lost except SS means stainless steel, XP3 means package gun, L means left hand. I'd advise against package rifles as they have cheap scopes mounted. It's MUCH better to buy a decent scope separately & mount it/have it mounted.