Originally Posted by
Ridge Runner
easiest way to make 6.5/06 AI cases, prime new 2506 cases, add a top level 6.5/06 AI powder charge, seat the proper weight .264 boattail bullet for the charge, shoot it.
a friend just rebuilt his 6.5 Gibbs, he said it had 2500 rounds through it.
RR
I'm guessing there is a small step RR forgot to mention...you need to expand the neck on the 2506 case to .264 using an expander ball from a die to allow for seating the .264 boooolet....
My experience with the 1 Ackley I have (257 Bob AI), which is new to me...is that best performance comes from fireforming with heavier/longer bullets that you can jam into the lands helps ensure a good formed case and prevents the firing pin from striking the primer just enough to allow the round to travel forward slightly when fired. I have formed just short of 50 Remington cases to date and have had no loss due to cracked necks....so far! If I can fireform an AI successfully my first try, anyone can....LOL