Gunsmithing Chamber mod for using 208 amax's

stangfish

Nemesis
Full Member
Minuteman
Mar 1, 2011
315
43
West of East
I posed a question on another forum about using my CBI 308 barrel to shoot 208 amaxes. On well respected smith says taper the throat at 1.5*and the others say extend the freebore. Who has experience and where should I set the OAL or ogive? I respect both thoughts just want to know who is shooting Lights out and how they did their throat/freebore.