Certainly no installation made mistakes.
Game crashes when you pull the gun.

@khobendrauf Did you have any other weapon mod installed, specifically for the heavy shotgun?
Because this mod doesn't replace the "w_sg_heavyshotgun.ydr", only the "w_sg_heavyshotgun_hi.ydr" and the textures. (and the mag1)

Could you do a barbed wire bat? Like Lucille, Negans bat in the walking dead :^) I'm surprised nobody has done it yet.

@poepsnol38 Direct weapons mod the Heavy Shotgun on I did not, but
by other mods weapons configs be changed.
Too bad, I liked to play Bioshock and know that gun.

It's pretty neat

I downloaded this, and modified the names so that it would replace the marksman rifle instead, and it worked great for a while. The magazine was bugged, but that may have been caused from me not including the META file (I'm using a weapon realism mod, and wanted to keep it if possible). The game eventually started crashing a lot and I had to backtrack to my backed up files. If it's possible to make a stable version of your mod to work with the marksman rifle, that'd be great!

Around five minutes the game crashes.

I'm confused, must you replace the metadata file or is that necessary. Everything worked fine except for aiming down sights and after around five minutes the game crashed.