Supply Drop

Item	Amount	Chance
Basic Blueprint Fragment	2	100%
Pistol Bullet	15–48	95%
12 Gauge Buckshot	6–12	85%
5.56 Rifle Ammo	12–50	76%
High Quality Metal	32–200	69%
Scrap	140–160	56%
Metal Shield	1–3	51%
Salvaged Sword	1–3	51%
Catapult	1	51%
Scattershot	8–20	51%
Firebomb	2–10	51%
Propane Explosive Bomb	2–12	51%
12 Gauge Slug	4	50%
12 Gauge Incendiary Shell	4–8	50%
F1 Grenade	2–4	49%
Satchel Charge	1	49%
Incendiary Pistol Bullet	10	47%
Snow Jacket	1	44%
Road Sign Jacket	1	38%
Road Sign Kilt	1	38%
Road Sign Gloves	1	38%
Pump Shotgun	1	37%
Semi-Automatic Rifle	1	37%
Custom SMG	1	37%
Thompson	1	37%
Coffee Can Helmet	1	36%
Bucket Helmet	1	36%
Riot Helmet	1	36%
Hoodie	1	36%
Pants	1	36%
High Quality Horse Shoes	2–3	31%
Roadsign Horse Armor	1–2	31%
Mini Crossbow	2–3	31%
Fire Arrow	10–15	31%
Battering Ram	1	31%
Siege Tower	1	31%
Wood	5000	31%
Piercer Bolt	3–10	30%
HV Pistol Ammo	10	27%
Chainsaw	1	27%
Jackhammer	1	27%
Timed Explosive Charge	1	27%
Incendiary 5.56 Rifle Ammo	8	24%
Ballista	1	19%
MP5A4	1	18%
Spas-12 Shotgun	1	18%
M92 Pistol	1	18%
M39 Rifle	1	18%
Prototype 17	1	18%
Gears	5	16%
Metal Pipe	5–6	16%
Sheet Metal	5	16%
Tech Trash	4–5	16%
Mounted Ballista	1	13%
HV 5.56 Rifle Ammo	10	13%
Explosive 5.56 Rifle Ammo	8	13%
Incendiary Bolt	5–10	8.3%
Pitchfork Bolt	5–10	8.3%
Hammerhead Bolt	5–10	8.3%
Ballistic leg armour	1	8.3%
Ballistic vest	1	8.3%
Ballistic helmet	1	8.3%
LR-300 Assault Rifle	1	3.8%

Chances are the odds at least one of that item appears when the container is opened. "BP" = dropped as a blueprint.

Other high-value containers