Welcome to TreasureNet's "What-Is-It?" forum, the best place on the internet for getting old relics CORRECTLY identified. Your have found military and civilian relics dating from the 1700s into the 20th-Century.
Photos:
Top-left photo shows British Royal Navy and Army uniform buttons from the 1800s (although some of them may be a bit later).
Top-right photo shows what might be a British 1860s Whitworth Rifle bullet (need precise measurements to identify it with certainty), a civilian brass "flatbutton" from the early-1800s, and various brass buckles and loops from packs and horse-harnesses.
Middle-left photo shows four 1850s/60s "Minie-balls" for the British .577-caliber Enfield Rifle, a couple of mid-to-late 1800s pistol bullets, and a late-1800s rifle bullet.
Middle-right photo shows a brass oval-shaped military Crossbelt-plate or buckle (need to see its back) from the 1700s or early-to-mid 1800s, three brass Colonial-era shoebuckles, and a British Crown insignia of some type (need to see its back).
Lower-left photo shows two late-1800s rifle cartridges, and a 20th-Century cartridge. They are more likely military ones than civilian-usage ones.
Lower-right photo appears to be a duplicate of the upper-right photo.