Bone in rib roast cooking times

[tjarnold]

Planning on smoking a 18lb bone in rib roast on my Green Mountain Pellet smoker, then reverse sear. Shooting for rare to med rare. Roast is 5-6” in diameter. Need guide on times and temperatures. Thinking of smoking at 250.

[smokin fool]

No cooking times for this really written in stone.
Go for an inside temp of 130 for rare at least.
I've never done a bone in rib roast but have done sirloin tips and rounds, I find its usually 2-3 hours depending on how big the roast is.
Usually smoke mine on a BKK at 270-300.

[klflowers]

Thats a large piece of meat. Take a look at this from the free side:

https://amazingribs.com/tested-recipes/beef-and-bison-recipes/prime-rib-and-other-beef-roasts