I collect as well, I have a .45 1911, 7 M1-Garands, 3 Springfield 03's, a multitude of bayonets, WW1 "trench gun" shotgun, A couple Lee Enfields, original testing M-16, before everything got "fixed". I collect them and keep them in working order. I also rent them out ($5 a rifle, per rental, a rental lasts 8 days) to veterans squads who do veteran funerals.
I ended up finding a 40mm AA HE round in my garage, I assume its from a bofurs 40mm.
That's why I'm a military history major, I just like all that old shit I guess lol.