Kirby,
Bill and Steve are keeping an accurate count of the rounds through their AMs. (I know they have the strong desire to wear them out as soon as they can /ubbthreads/images/graemlins/grin.gif /ubbthreads/images/graemlins/grin.gif) It will be interesting to see the throat errosion compared to the number of rounds fired.
My project rifle,(the 338 RUM take off bbl that you sent) will be finished later this week. I hope to finalize the FI project with it. If it pans out as I desire it to, the next step will be to implement it in the 270 AM. I hope to fire all rounds using the FI. From the powder & performance numbers you posted the case size seems about right for it.
Gettin' wordy here, as usual /ubbthreads/images/graemlins/crazy.gif The point is to see if FI will lessen throat errosion due to powder impingement.
PS: I have pretty much confirmed that my earlier FI problems were caused by way too high pressure. I was gauging pressure from case/primer parameters but 2930 fps w/250 grain sierras and 252 WCs is a bit much.......But **** it shot good! It seems that there was alot of the case head flex w/o plastic deformation.