JackOLoser

A construct-able object you can place in settlements that would provide respawning, radiant bounty quests. They'd be turned in at the settlement itself, same as any other settlement quest (like the kidnappings or clearing out an unsafe area, for instance). Doesn't seem like it'd be exceptionally complicated. Bounties could provide a handful of caps, ammo, chems, or junk items, maybe scaled to the player's level.

You should look in the trapdoor under Bunker Hill, after the fight between the synths and Railroad. I found several armored coats (and Gauss rifles) there when I went back later.

http://www.nexusmods.com/fallout4/mods/3456/ Is this what you're looking for? Disclaimer: I haven't used this mod, so I can't vouch for its quality. I just saw it.

http://www.nexusmods.com/fallout4/mods/4010/? Behold. But they don't have the particular conversion I want. And yeah, I used to do that kind of thing back then too. My favorite was the Apocalypse Cannon -- A rapid-fire MIRV. Made that one back in 3. Anyway, I'm sure I'll be able to make this mod myself when the official CK comes out, but I was kinda hoping not to have to wait that long.

I hate bumping my own topics, but I'd really like this to happen. It's apparently doable, since I've seen caliber-changing mods already. I'd do it myself if I knew how.

http://www.nexusmods.com/fallout4/mods/4380/? Is this what you're looking for?

Like this? http://www.nexusmods.com/fallout4/mods/4380/?

http://www.nexusmods.com/fallout4/mods/5634 Is this the kind of thing you're looking for?

In a series like Fallout, with its Hollywood radiation and such, I'm not bothered much by a dip in the immersion level. I just wondered if it could be done.

Would it be possible to make a new receiver for the 10mm that changes the caliber to 5.56? Lower the magazine size to 5 (maybe 6, whatever feels the most balanced), lower the fire rate, raise the damage beyond the Advanced Receiver. Just something to make it similar to the classic .223 from Fallout and Fallout 2, which was fairly strong, but a low magazine size and fire rate. It also had a good deal of armor penetration, but if the damage was raised enough, that wouldn't matter too much to me. This might require waiting for the proper construction kit, but whatever info you can provide would be appreciated.