Incendiary 5.56 Rifle Ammo is one of four types of rifle ammo available in RUST. They could be subcategorized as more PVP-focused ammunition for rifle-type weapons such as the Assault Rifle since they have better penetration through Heavy Plate Armor sets and periodically deal additional damage to players through on-hit fire spawns.
You can find incendiary 5.56 rifle ammo in various crate types or loot from specific NPCs at higher-tier monuments. While there are no in-game stores in RUST that stock this ammo, players may sell this type of ammunition from their Vending Machine shops.
Incendiary 5.56 rifle ammo will recycle for roughly half of the total crafting cost, and players may also research them via a Research Table or the Workbench Level 3 tech tree. In addition to being compatible with all 5.56 ammo-using weapons, typically rifles, they are also famous for base defense via Auto Turrets. One often-overlooked advantage of using the incendiary 5.56 ammo inside of auto-turrets is that the on-contact fire spawns can help identify where enemy players are at night.
You can place over 1500 rounds in auto turret storage, matching the rate of fire of the gun equipped to the auto turret.
As mentioned prior, incendiary 5.56 rifle ammo is ideal for combating players using heavy plate or horse armor. Unfortunately, they are less accurate over longer distances than the traditional 5.56 Rifle Ammo due to their drop rate.