This mod adjusts the damage and armor penetration value to the cartridge that this weapon uses. Now the pistol will not penetrate armor better than an AK. This also applies to shotguns. All shotgun damage increased to 400 from 150, but armor penetration reduced to 1. Rhino and M701 damage has not been changed, but armor penetration was reduced and increased, respectively. Otherwise, the damage and armor penetration characteristics are similar to the ammo table from "Escape From Tarkov".
9X18 - damage = 25, piercing = 1.2  - PST GZ
9x19 - damage = 28, piercing = 1 .8  - FMJ m882
45.acp - damage = 38, piercing = 1.9  - Lasermatch FMJ
9x39 - damage = 31, piercing = 4.3  - PAB-9GS
5.45x39 damage = 26, piercing = 2.8 - PS gs
5.56x45 damage = 28, piercing = 3.2 - m855
7.62X39 damage = 28, piercing = 3.6 - PS gz
7.62x51 damage = 40, piercing = 4.1 - m80
7.62x54 damage = 40, piercing = 4.2 -LPS gz

The range of shotguns has been increased, the damage and armor penetration of grenade launchers has been increased.

So If you want to buff NPCs, then use WeaponesRebalanceNPC in optional files.

Weapon wear from shots has also been reduced.

Use NPCHP if you think the humans are dying too quickly.
WeaponesRebalances and WeaponesRebalancesX05DMG will change the following file "PlayerWeaponSettingsPrototypes.cfg".

WeaponesRebalancesNPC and WeaponesRebalancesNPCX05 will change the following file "NPCWeaponSettingsPrototypes.cfg".

NPCHP and NPCX05 will change the following file "DifficultyPrototypes.cfg".

In 1.3v improved accuracy, increased range, reduced shot wear

You can download the optional AmmoRebalnce file, it will change the cartridges as shown below, now they do not increase the wear of the weapon when fired and their price has been adjusted
9X18mm RG028    Penetration+0.1 Damage *1.3Cost=15
45.Acp AP      Penetration +1.9 Damage * 0.87Cost=75
45.Acp RPenetration -1.6 Damage * 1.7Cost=35
9x19 AP Penetration + 1.2 Damage * 0.93Cost=40
5.45x39 PP    Penetration + 0.6 Damage * 0.95Cost=50
5.45x39 MZHV-13         Penetration -0.7 Damage * 1.9Cost=5
9x39 SP-6      Penetration + 0.5 Damage * 0.97Cost=100
9x39 SP-5      Penetration -1.5  Damage * 1.15Cost=20
9x39 SPP      Penetration -0.8 Damage * 1.1Cost=50
5.56x45 995          Penetration + 2.2 Damage * 0.74Cost=300
5.56x45 Mk262    Penetration + 0.2 Damage * 0.97Cost=40
5.56x45 Hp  Penetration -2.4Damage * 1.4Cost=5
7.62X54 B-32       Penetration+ 1.3 Damage * 0.96Cost=120
7.62X54 7N1        Penetration + 0.3 Damage *1.04Cost=110
7.62X39 BZ           Penetration + 1.2 Damage * 1.01Cost=300
7.62X39 LAN                 Penetration - 0.5 Damage * 1.12Cost=25
7.62X51 AP                   Penetration + 2.3 Damage * 0.88Cost=600


Installation
Slap the pak file from this mod into your 'S.T.A.L.K.E.R. 2 Heart of Chornobyl\Stalker2\Content\Paks\~mods' directory