Original Mod

This is a customized FWE version of the original ammo limit mod seen above.
I'll also include a version which also limits the amount of stealth boys and explosives you can carry.
Check original mod description for better info.

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Vanilla Ammunition Limits:

10mm - 30/30
.32 - 20/20
.308 - 15/15
.44 - 25/25
5.56 - 90/90
Mini-Nukes 2/2
Flamer Fuel - 255/255
5mm - 240/240
EC Packs - 510/510
Darts - 5/5 (Makes no sense but darts are pretty OP in FWE)
Small Energy Cell - 100/100
MicroFusion Cell - 150/150
Shotgun Shells - 15/15
Railway Spikes - 30/30
Missiles - 10/10
BB - 1000/1000
Alien Power Cell - 10/10 

Fwe Ammunition Limits

9x19 - 20/20
14mm - 15/15
45ACP - 15/15
7.62x51 - 60/60
7.62x54R - 8/8
4.7 Caseless - 150/150
30-06 - 15/15
40mm Grenade - 5/5


Alternative Version Limits 

Explosive Limits

Molotov Cocktail - 3/3
Nuka Grenade - 2/2
Bottlecap Mine - 2/2

Frag Mine - 4/4
Frag Grenade - 3/3

Plasma Mine - 2/2
Plasma Grenade - 2/2

Pulse Mine - 2/2
Pulse Grenade - 2/2

Stealth Boy Limit = 2/2

These are quite hardcore settings and are balanced for high damage gameplay. 
You can fairly easily customize the limits ourself by opening the script with GECK.
Script can found by the name of "H52AmmoLimit"

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Installation:

- Download with NMM and activate or manually drag the esp to your data folder.

Requirements:

- Fallout 3 Wanderers Edition


Credits:

Harmy52 for the original mod and script structure
Me for making it also limit FWE ammo types.
Bethesda for Fallout 3