Shotguns do 2d8 damage, have a range of 30/90, reload 2, and are two-handed. While one would think the range would be a little higher than the Automatic Rifle, this is going to do a bit more damage at the cost of all those bells and whistles, and with the relatively small clip, you're much more likely to need to reload. Hunting Rifles do 2d10 damage, have a range of 80/240, and reload 5, and are two-handed. This does seem to take up an action, not just an attack, but if you can get three or more in the range, you can do some nice splash damage. This burns up 10 bullets, but it lets martial classes do some AoE, which is pretty cool.

Burst fire lets you target a 10-ft cube within the normal range (so within 80 feet) and have every creature there make a DC 15 Dexterity saving throw, taking your normal weapon damage on a failure. At this point, the range is far enough to probably be fine in almost any combat situation, the damage is huge, and unless you use the special property a ton, you're almost certainly not going to have to reload in combat. These start to do multiple dice of damage, which really causes it climb high.ДЄutomatic Pistols do 2d6 damage, have a range of 50/150, and have the reload 15 property, which means you only need to reload the thing after 15 shots, which becomes far less of a burden (it's very unlikely you'll fire over 15 shots in a single combat.) Again, the range could make bows and crossbows more attractive, but you're getting a lot of bang out of a one-handed weapon here.ДЄutomatic Rifles do 2d8 damage, have a range of 80/240, reload 30, are two handed, and have the special burst-fire property.

Modern firearms are, I think, meant to represent anything from the second half of the 20th century to actually now. These do seem to come at the cost of range, though - the Heavy Crossbow's range is 100/300 - so to use these, you do have to get close to the monsters.

Muskets are 500 g, which is certainly the most expensive a nonmagic weapon can get (though the more advanced ones are effectively priceless.)ДЄlready, the renaissance firearms are on par with melee weapons, with the one-handed pistol doing just as much as a heavy crossbow. At the cost of a shield (if your class can even use those,) you get a bit more damage and range, which is probably worth it. Muskets do 1d12 damage, also have the loading property, and a range of 40/120, and are two-handed weapons. Pistols cost 250 g, which is far more than any of the base PHB weapons. They have a range of 30/90, which means you'll need to get in pretty close range unless you get the Sharpshooter feat. Pistols do 1d10 damage, and have the loading property, requiring a reload after every shot (making that feat very attractive, especially if you're playing any class that gets multiple attacks). These are also the only ones with a listed cost in gold, and the fact that they use a single die puts them in line with most existing D&D weapons. Renaissance weapons are what I'd say fit well in a swashbuckling pirate adventure, or possibly a classic gothic monster-hunting adventure (Ravenloft springs to mind). The DMG has a list of them in the Dungeon Master's Workshop chapter, separating them into Renaissance, Modern, and Futuristic. Many people read 'fantasy' to be explicitly set in a pre-industrial world, and as such feel that the existence of firearms would break the immersion in the standard fantasy timeframe, which is classically the realm of knights on horseback fighting dragons and such.ДЄs a huge Dark Tower fan, though, and who generally likes mixing up genres (I also came to it only with the Remake from last year, but FFVII's general aesthetic is absolutely up my alley) I'm eager to allow these more modern weapons to be used in my setting. Guns in D&D 5E are only found in the Dungeon Master's Guide and in specific adventure NPCs. It appears to be confirmed that one of the new feats coming in Tasha's Cauldron of Everything will be 'Gunner.' This does a few things: it grants you +1 to Dexterity, proficiency in firearms, removes disadvantage for having an enemy within 5 feet of you, and allows you to ignore the loading property (which would normally cost a bonus action to load your weapon after firing it.) In a lot of ways, this is similar to the Crossbow Expert feat, but in lieu of getting to shoot a hand crossbow with your off-hand, it explicitly empowers you to use firearms.

Dmg 5e firearms