Originally Posted by Capt Academy
Could I change my Rem 280 700 into a 280 Ackley or would I need a new barrel. Also, would it be worth it to do so?
It IS possible, but your going to give up some barrel length to do it.
You would have to have the barrel set back, so that it would allow the Ackley Reamer to cut out the standard 280 chamber. How much would be lost would be depending on the chamber you have now and how tight it actually is.
That said, for just a little more money, you could pick up a new barrel in the length, contour, and make you wanted, and have it installed and chamber to the AI version.
A few years ago, when I did my 25-06 AI I picked up a Broughton 4.1 Magnum Sporter 5C for something like $350, and it has a finished lenght of 28". With the added length and case capacity, I am pretty easily driving 120gr bullets to 3350fps with no issues. Doing the same with the 208, you could surely get some VERY respectable velocities with the slower burning powders.
I considered swapping the barrel out on my Ruger 77 to a .280 AI, but after speaking to Ruger about it I decided to leave it alone. It is the older tang safety with a 26" bull barrel on it and they said they only made around 2K of them in that particular combination. It still shoots bug hole groups out to 200yds with the Hornady 139 and 162gr bullets, and I am cleaning it up to possibly pass over to one of my nephews. Being as I have a 7 RM and an STW I just don't shoot it much if any anymore.