My primary is recurve reflex bow with stabilizer and a large quiver of metal arrows. I find this bow combo tends to be as deadly as a shotgun, with slightly better range/damage potential. The metal arrows seem to last a long time, and I manage to reclaim almost all of them. Best of all, you don’t make any noise!
I also carry an RM228 short shotgun in a standard holster. For the most part, I don’t need it much now that my bow skill is high, but it’s good against skeletons and anything else that absolutely must be insta-gibbed 
For turrets or large crowds, I keep an RM11B Scout Rifle in a back holster. The rifle is pretty pimped out with mods, and you can easily take out turrets with standard rounds.
I also carry a random “pistol of the day” in an ankle holster, as well as a combat knife, holstered in a survivor utility belt.
What do you carry on your adventures?