I shoot smallbore matches, so it's going to be a lot more than anyone else here.
I have, a box of sights (3 rear sights, all anschutz universal, 2 20 click, and 1 10 click, an adjustable iris front sight by centra), a box of screws (a bunch of different sizes of metric screws, some riser blocks, an air rifle butt plate), another box of screws and tools (holds 4 75 gram weights for my 2013, 7 steel weights for my air rifle, a steel butt plate rod (12 mm anschutz), metric allen wrenches from 1.5 mm to 4 (more than one in the same size in some cases), the soft link system pieces for my 9003 air rifle (rubber pieces that go between the stock and the barreled action), a front sight globe (m18 anschutz), 10 1" diameter, 1/2" height brass bar stock that I haven't drilled out for weights yet, 2 rear sight riser blocks by centra, and a couple more odds and ends), a pair of kusterman shooting boots (monoco), kurt thune pants and jacket, bsa 50mm spotting scope in its box, bsa platinum target scope (6-24x44mm), a kneeling roll, 3 21" scope rods, an esp offhand stand, a prone mat, a stabilizer rod for prone, an anschutz palm rest, mouche (cool) shooting underwear (top and bottom), weights from my old hammerli air rifle, custom ear plugs, a metric wrench set, and an english wrench set.
That's all I think, sans some of the trash (bits of ammo boxes etc) that has gotten in there.