I guess you have already researched the 6x284 and know that it is considered "overbore".
They are but - I have 4 different rifles chambered in 6x284 and all are 1:8 twist barrels and all are built on trued Remington 700 actions. I have been shooting this caliber for 11 years and after shooting a wildcat for this long I can tell you that it is hard to go back down to a .243 or 6x47 or similar cartridge. You can get very close to the same velocity with several other 6mm cartridges and extend barrel life. I have tried it but keep coming back to the 6x284 - I guess I'm just a natural hot rodder.
I do my own barrel work so changing out a barrel or setting one back that has throat wash is not a problem. I usually set a barrel back the length of the barrel tendon at around 1000 to 1200 rds, sometimes before, sometimes after - just depends on what it's accuracy is doing.
Each rifle has a different barrel on it so I am not biased on any particular barrel manufacturer. One wears a Hart, one a Krieger, one a Broughton, and one has a Bartlein. All shoot with excellent accuracy and very fast.
I also shoot moly in all my rifles and I feel that it does get me an extra 100 to 200 rounds out of the barrels.
I also keep and eye on the throat erosion with my Hawkeye borescope and it helps me determine if erosion may be causing a accuracy problem and/or if it's time to rechamber or rebarrel.
I could go on and on about the good things about the 6x284 but you have to weigh the pro's and con's yourself and make the final decision.
Bottom line - how fast can you afford to go.
If you decide to go the 6x284 route there is plenty of load info on the boards.
By the way - the rifle you posted the link to looks like a very fine, well built weapon. I would definitely want the Jewell trigger.
Larry
