free m4 ammo no cheats

[tommy gta 4]

i was playing game the other day and i was in the amunation in palmolino creek i bought some m4 ammo 1000 or 2000 i cant remember and i thought ill get my pistol skill up note i started new game a few days before and i started and fort na i cant be botherd and quit my ammo had doubled i tryed again it doubled i kept doin and got unlimited ammo i went and saved i come bac and fort why not do with some other weapons more exspensive money does not matter btw had 15m from roulette but it didnt work so i think it only works with m4 or maybe ak47 has this happend to anyone else i apoligize if its been found i know its anoyng but i thought id try and see incase anyone has started the game again to keep them occupied from the gta iv delay