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25mm grenade is a type of ammunition in Fallout: New Vegas.


This is standard ammunition for the grenade machinegun. All varieties explode on impact except the timed, which explodes about five seconds after launch, bouncing off things it hits earlier. They deal 50 damage in a radius of 8.59 yards (7.85 meters).

Weapons using this ammunition[]


25mm grenade, high explosive[]

A more powerful variant of the 25mm grenade. HE rounds have a 36% larger blast radius (11.72 yards or 10.72 meters) than normal rounds and deal 35% more damage.

25mm grenade, plasma[]

A sub-type added with the add-on Gun Runners' Arsenal. They deal significantly more blast damage than normal 25mm grenades, but have a smaller blast radius.

25mm grenade, pulse[]

A sub-type added with the add-on Gun Runners' Arsenal. They deal significantly less damage than normal 25mm grenades and have a much smaller blast radius, but deal an extra 75 damage to robots and 30 damage to power armor.

25mm grenade, timed[]

A sub-type added with the add-on Gun Runners' Arsenal. This type of grenade has a fixed-length 5-second fuse, and will not detonate if it hits something before this, which means it can be used to bounce grenades around corners.


Ammunition type- Ammunition TypeWeapons spreadWeapons spread modifier
Damage Modifier- Weapon Damage modifierBonus effectAmmo bonus effect
Damage Threshold modifier- Target Damage Threshold modifierCraftable- Ammo is craftable
Condition penalty- Weapon condition modifierPercentage chance of empty casing- Percentage change of empty casing, hull or drained cell/pack/tank
Ammunition typeDamage modifierDamage Threshold modifierCondition penaltySpread modifierBonus effectCraftablePercentage chance of empty casing
25mm grenade, standardx 1x 1x 1x 1No0% chance
25mm grenade, pulse Gun Runners' Arsenalx 0.08x 1x 1x 1+75 EMP robots
+30 EMP power armor
x0.4 AoE radius
No0% chance
25mm grenade, timed Gun Runners' Arsenalx 1x 1x 1x 15 second fuse,
no detonation on contact
No0% chance
25mm grenade, plasma Gun Runners' Arsenalx 1.3x 1x 1x 1x 0.86 AoE radiusNo0% chance
25mm grenade, high explosivex 1.35x 1x 1x 1x 1.36 AoE radiusNo0% chance