Hello im completely new noob in UO

I have a little problem on my rifle UO server with demage.
The problem is that even if i shoot enemies in head(helm) they dont die they still have like 5-10% of health
So my question is do i have to reduce healt of the players or give to each weapon more demage ?
If you know the answer please send me the script or config entry and where to put it please

Best regards
Jelenica


(Thank you any1 for help)