Fallout New Vegas
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weijiesen - darthbdaman - S6S

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About this mod

Replacement main plugin for IMPACT, that automatically patches all weapons in the game, DLC, and mods, to have the appropriate Shell Casings and Impact Data Sets based on their ammo types.

Permissions and credits

I love IMPACT, but it was always a pain to write compatibility patches for, as it required patches for every single weapon in your load order, so a lot of mod added weapons would inevitably get left out, unless you patched them yourself. This mod fixes that.

This mod is a replacement plugin file (this requires assets from the original mod) that adds a scripted patcher that automatically patches all weapons loaded into the game to have the appropriate Shell Casings and IMPACT Data Sets, based on their ammo list or type. This will work with any weapon, in any mod, that is using a Vanilla or DLC ammo list, or any ammo type on a Vanilla list. In addition, version 2.0 comes with scripted compatibility with Classic Fallout Weapons Remastered, and S6S Ammo Rebalance and Rechamber Master!
I have also included scripted checks for weapons using Companion Ammo and non-playable robot ammo, in order to give them the correct Shell Casings and Data Sets. This will work for Vanilla, all DLC, and TTW, without requiring them.

This will relieve the need to patch IMPACT, to make it compatible with any mod that adds weapons or edits weapon data. The mod no longer edits any weapon data at all, which is why an entire replacement plugin is provided. It is identical, save for the added scripts and removed weapon records.

You should no longer need patches for IMPACT, and should no longer need to use your current patches.


  • Compatible with any mod that does not add a new ballistic ammo formlist.
  • Compatible with CFWR and S6S Ammo Rebalance. Neither mod is required, both are just patched seamlessly if you have them installed.
  • .50 BMG casings from WAP Anti-Materiel Rifle Replacer are supported (but not required). You may either use the mod in it's entirety, or download it and delete everything except the following files:

  • .22LR casings from WAP .22 Silenced SMG Replacer are supported (but not required). You may either use the mod in it's entirety, or download it and delete everything except the following files:


Other Links

If you would like to know what else I am working on, you can follow me on my Twitter. If you want to see more of my mods, you can view all of them on my Nexus profile.

If you would like to see more, you can subscribe to my YouTube channel, or follow me on Twitch, where I play a variety of games and showcase a variety of mods. If you really feel like supporting any of this other work, I have a Patreon, though this is obviously not necessary.

If you want to discuss any of my work, or just want to hang out, you can join my Discord. If you want to directly contact me, my email address is [email protected].

Thank you for reading, enjoy!
As of version 2.0, oversight of this page and file is handled by Sweet6Shooter.