Re: LongRifles Inc.
Essentially the reamer is little more than a min spec 7mm Rem Mag with a throat length set to place the chosen bullet (A Berger VLD in this case) to where the bearing/boat tail junction sits just above the neck/shoulder junction of the case.
This way you stay out of the "doughnut" in the case (avoiding the whole case reaming nausea), give substantial case capacity, and in the proper action still facilitate good cycling. The only "bad thing" in this is that as the throat wears and a guy seats out a little further to compensate he's going to run out of adequate neck to support the case before too long.
In Wes's case this wasn't a major concern as the rifle is a hunting gun and isn't going to see the high concentration round count the way a match rifle or semi auto would. It'll give him a long service life.
Hope this helps.