A 12 Gauge Slug is a solid projectile designed for use with a shotgun. It was originally designed for hunting big game, and was observed to be more effective at range than buckshot. It has less range than a comparable rifle round, but deforms less when traveling through obstructions.
— Battlelog description
12 Gauge Slug rounds are featured as a shotgun ammo type in Battlefield 3. Slugs are the last ammo unlock available for all-kit shotguns and the M26 MASS. Slugs behave much like rifle rounds, with good stopping power over considerable range, after the March Patch slugs seemed to have a damage and range increase making all shotguns, loaded with slugs be capable of one hit kills at ranges over 10 meters.
The use of 12 Gauge Buckshot is preferable at close range because of its natural spread; however, hitting an enemy at point blank with a slug will kill them instantly. At longer ranges it has very noticeable bullet drop possibly making it the worst in the game, but if a player adjusts to this some shotguns can become improvised sniper rifles.
— Battlelog description
12 Gauge Slug rounds are a shotgun ammo type featured in Battlefield 4.
In pump-action shotguns, they are capable of a one-hit-kill up to 12 meters, but if the enemy has ARMOR equipped, a headshot is needed for a one-hit-kill. At range, it will take two to three hits, regardless of armor.
In semi-automatic shotguns, it offers less damage at close range, but the damage is just as high over range, meaning a semi-auto will usually be preferable past 12 meters due to its higher rate of fire and capacity. At mid-long ranges, a DMR would be a stronger choice for power and accuracy.
As the ingame menus state, the chokes are not recommended to use with slugs. The Modified Choke and Full Choke both modify the spread of slugs negatively. Shots will have a much wider cone than normally. The Duckbill appears to have no effect.
— In-game description
Slug Ammo is a shotgun ammo type featured in Battlefield Hardline as an accessory, functioning in the same manner as the Battlefield 4 counterpart.
- Using the M26 SLUG on an assault rifle with the heavy barrel attachment will give each shot the same power as a single assault rifle bullet. (Patched)
- According to designer Alan Kertz, they are not as accurate nor as powerful as they were in Battlefield: Bad Company 2.