might be dma? here's one way to make inf ammo in sf games.
search ".skl" in a text search and scroll down to the weapon you want to mod .skl
copy the address in to your decoder and scroll down intell you find the amount of ammo your weapon hold in a clip
then make the value higher. you will not get instant results but try putting the selected weapon in a box and taking it back out
or restarting the game with the value how you put it.