Have you put in 20 years of service in the NCR? Do Caesar's Legionnaires run in fear of you? Then you must be an NCR Vereran Ranger. You're tough as nails and eat your enemies for breakfast and Sugar Bombs for dessert. You deserve the proper side arm! So here is your Sequoia.
This stared as a raw game pull (that model included). I scaled it to the 17.5" long real life gun it was based on.......yeah, it's that big! The I smoothed a lot of things out and added the inscriptions in the barrel, sides of the grip, and bottom of the grip. I prefer to print in ABS for my props so I can acetone weld and smooth. If you do, scale up ~2%. I also included some rounds so you can add them to a bandoleer to further look like a bad-ass.
Now go and cleanse the wasteland with your huge hand cannon!
Made the cylinder actually round.
Made an axle system to make assembly easier and allow the cylinder to spin.
Also uploaded the grip in 2 pieces as I like to print it. I made a key system to aid assembly.
2-24-17 Update: I made an axle system for the cylinder.