Upon being hit with Demon Ammo by a teammate, a hunter's Raw Base damage will be increased by 25. This buff lasts for two minutes (120 seconds) or until fainting or leaving the hunting area. Like Demondrug, Demon Ammo stacks with other attack buffs such as Might Seed/Pill, Demon Powder and the Canteen's Attack Power Up buff. However, it does not stack with Mega Demondrug. Being hit with Demon Ammo while its buff is active will refresh its effect timer.
Demon Ammo can be applied to both teammates and Palicoes, and can only be applied by players wielding a Bowgun capable of carrying it.
See the article on Attack Power for information on how buffs like that from Demon Ammo will affect damage output.
Demon Ammo description:
Ammo that fills the target with savage amounts of strength.
How to Acquire Demon Ammo
Demon Ammo can be obtained by crafting. The recipe will yield three Ammo, making it an efficient and potent way for a bowgunner to add to a team's damage output. Demon Ammo can also be created at the Elder Melder in Astera for 30 Resource Points and 50 Melding Points.