Excellent shooters, even though they have rather "creepy" triggers. There are a few gunsmiths who will tackle the trigger job; a cheap alternative is to "snip" one coil from the trigger sping (recommend you have a spare before you try it!).
The butt plate on the 760 was usually pretty narrow and fitted with an aluminum plate, unless the owner replaced it with a recoil pad. If a pad is installed, it is probably pretty hard by now and can be replaced with a new "limb-saver" or "decellerator" which will make it a whole lot more comfortable to shoot. Bell and Carlson makes a two piece "composite" stock that is worth consideration. It has less drop at the heel than the original stock, wider at the butt end, and tends to absorb the recoil better than the 1950's design that is incorporated in the rifle.
The 760 uses an "interrupted" lug bolt for a cartridge "lock-up" that is plenty strong for any 30/06 load; however, it lacks the primary extraction strength of a "bolt" rifle, so approach max reloads with caution.
I've never found the gun hard to reload, but I do make sure I "tumble" my brass ever so often to keep the "crude" out of the action and use the, provided, chamber brush after cleaning the bore.
I've found the 760, and newer, 7600 to be as accurate as most bolt action guns. They are about the fastest action type made that allows you to keep the gun to the shoulder for subsequent shots at game on the move, while providing more reliability than most "civilian" autoloading rifles. You're getting a very nice gift from a Father-inlaw who must place considerable value on your character - congrats!