[Solved] Amount Ammo Check - Reload Gun

Hi.
I have problem with checking how much player has ammo in inventory and loading certain ammo to the gun.
I made this but if player has one ammo item in inventory he reloading max ammo.

When i wanted add Tag to ammo and make with NBT tag, checking Ammo NBT tag, its was failure.

Here we have shoting procedrue if will need it:

I need checking how much have player ammo in inventory. For example, if max ammo has 7 slots, i have 5 bullets in inventory, after reloading i will be have 5/7 available shots.
In pistol its not very bad but i made 30 bullets rifle and now i have problem.
How edit this reload procedure?