The ammo reserve has to make sense with the ammo capacity. So if the magazine holds 13 rounds, the ammo reserve has to be a multiple of 13. If it holds 5 rounds, it has to be a multiple of 5. My ammo has to look like 13/65 or 5/45 etc. If it’s 13/68 or 5/43 or soemthing I will literally waste ammo to make it right. I first started doing it with New Vegas and I haven’t been able to break out of the habit.