Our experience indicated that a longer jump was more accurate with the 129 ABLR. I do not have a measurement on COAL to set the bullet to the lands, but We first went for magazine length and then backed up about 30/1000 which yielded a tighter group. I have not autopsied a wild hog shot with this load, but the man we gave them to reported unusual fragmentation of the bullet which I would not expect of a Nosler ABLR launched at under 2600 fps. I have used .308 caliber Nosler AB that were pretty tough bullets.
