Very disappointed with .50 in the game. It has a great sound and weapon effect, but if you're waiting for that sledgehammer, knock 'em across the map damage, it's just not going to happen. Like I said disappointing.
Really wish it had it's own model as well. so we had something really special to look forward to. Chambering .50 on a Rem 700 frame is pretty eye-rolling. And yes the Ferret is a very cool weapon, but even it has a wickedly different silhouette than a standard AR, not to mention it is only designed as a low-cost single shot weapon for .50 BMG, as opposed to being a combat frame.
Really miss the Hecate knock off in New Vegas with the option of explosive and incendiary rounds. Everything weapon and ammo-wise was really teed up for Bethesda after New Vegas. While the mod system is truly fun and interesting, a lot of potential was squandered, and guns overall feel pretty blah. Seems like they really only want you to play this game with energy weapons and power armor, and that's a little sad coming from a developer that wears 'player freedom' on their sleeve. Small arms did not take a step forward like they should have from New Vegas. It all feels very regressive.
Although I love the game, I am really disappointed with weapons in this game from looks, to damage balance, to ammo balance, to the insane weights, and seemingly head scratching effects (both positive and negative) that these mods provide. Gun performance and design should have been the last thing anyone was disappointed about in FO4. All they really had to do was iterate on New Vegas, throw out the trash, and overlay their system on top of it. Just let down really. Still a great game despite their weird weapon vision and blah ammunition system.
TL:DR: .50 cal is disappointing in performance and aesthetics. It is far too underpowered and should have it's own stand alone, model design. It should reflect a similar DAM value as the Gauss (the Gauss should probably have a higher DPS unless using explosive or incendiary ammo), and ammunition should be scarce. Not having any ammunition reloading capability has hurt my outlook on weapons and ammo as well. We can create entire towns but not a single round of ammunition. It appears that I will have to wait for modders to fix what I can only consider a not so well thought out weapon/ammo mess.