Simple base damage rebalance of weapons by caliber to provide a more realistic experience. Didn't find any rebalance of modded weapons on here so I took an hour out of my evening to rebalance the Vanilla, DLC, and single most comprehensive mod I could find on here, the Weapons of the New Millenia/MTindle merged pack. All those files are required. Rebalances Honest Hearts, GRA, preorder packs as well as this mod. https://www.nexusmods.com/newvegas/mods/68197

Damages range approximately the following, give or take a couple points for variables like barrel length, special weapons, etc...

22LR guns: 30-32 base damage
9mm guns: 45-48
10mm guns: 50-52
.44/357 guns: 50-55
.556 guns: 55-60
7.62 x 39 guns: 55-60
.308 guns: 60-75
Hunting/Sniper Rifles: 75-90

20 gauge shotguns: 70-80
12 gauge shotguns 80-100

1 handed melee weapons: 30-45, depending on type, with occasional exception
2 handed melee weapons 45-70, depending on type, with occasional exception

Energy pistols: 35-50
Energy rifles: 50-70

Find it to be a good realism rebalance for some challenging, heart-pounding fights,  especially when used in conjunction with  Realistic Weapon Damages, which edits limb damage instead of the weapons themselves.