How to edit ammo capacity

Like the title says, I want to edit the max ammo capacity for particular weapons. I want for example, to set the max pistol ammo at 36 bullets total. No more, no less. Ive downloaded simple weapons editors but they dont include a ammo capacity setting (only clip size). I tried to open the weapons.meta and there were so many lines I couldnt find the specific ones I needed. Could someone tell me where I need to look, thanks