one hit kill

guys I found this one hit here but do not know if and path
a Code:
One Hit Kill = 0x7F8

Although this working?

use the AmmoDamage 0x818 and make it + IDk for i hit but you can try 500%+ more damage so you get the original AmmoDamage and you make original*5 and then you have 500%+ damage and i think that will be 1 hit if not make 600-700% ....

i use value 4444 and it work great lol

but just for ZLM no other