Hi everyone,
I've got a Sako Roughtech Pro in 7mm Rem Mag and I'd like to load the 7mm 168 grain Accubond Long Range. The barrel is a 1 in 9.5 twist. Nosler claims it will stabilize in a 9.5 twist but Berger twist rate calculator says marginal stability. The JBM stability calculator with the plastic tip input says it's stable. Does anyone have any first hand experience with this bullet and a 9.5 twist? How accurate is the JBM calculator which takes the plastic tip into consideration? I'll be shooting at 1300 ft and temaptures down to 0c (32f)
Thanks,
LP
I've got a Sako Roughtech Pro in 7mm Rem Mag and I'd like to load the 7mm 168 grain Accubond Long Range. The barrel is a 1 in 9.5 twist. Nosler claims it will stabilize in a 9.5 twist but Berger twist rate calculator says marginal stability. The JBM stability calculator with the plastic tip input says it's stable. Does anyone have any first hand experience with this bullet and a 9.5 twist? How accurate is the JBM calculator which takes the plastic tip into consideration? I'll be shooting at 1300 ft and temaptures down to 0c (32f)
Thanks,
LP
