I can replicate the casing bug in Icecoons Weapons. It looks like the game is spawning full stacks due to the change in how the game counts casings. The game no longer specifies the amount of cases at the item level; it now sets the amount at item_group. I have updated it in a recent PR.
The KSG underbarrel magazine doesn’t work well with the recoil system, since it has a weight of 0.00. The magazine is actually an underbarrel shotgun with identical stats, except weight, volume.
Dividing gun weight equally between the second magazine and the gun appears to fix the problem. Correction: it sets the magazines’ recoil to 317 and the guns’ to 206.
Correction correction: GIGO. It works. Set the weight of each to 1550.
The AUG and SKS are also disappearing from the world. The KSG and combination guns are unaffected. Coolthulhu has a fix available.
Mechanical winches work in 5814