Originally Posted by TheJackal
Approx averages in my experience (cooked ~20 briskets this past year):
275 -- ~7 hours
250 -- ~10 hours
225 -- ~12-13 hours
That's grate temp as measured with a guru pit probe in an insulated smoker.
Briskets were all injected and wrapped and 13-15# on average.
estimate does not include rest/hold time.
If this is accurate 225 would work out best for me time wise , but I seem to remember reading in some other threads about briskets taking up to 20-24 hours if you cook them that low.