Great thread. I am in the process of building a 338 RCM. As to feeding with short fats...this is not like a WSM case, it fits and feeds like a dream from my old tang safety M77 short action, while a WSM case won't get past the feed rails.
I am certain that the 338 Win mag will beat this with handloads as the capacity of the 338 RCM is almost identical to the 338-06.
