Has anyone experienced where a 180gr .308 bullet reaches a optimum/max velocity before the accuracy seems to drop off?
Say a 180gr in a 300 Win Mag. From what I've seen there seems to be a sweet spot around 3050fps and once you get above 3100fps there seems to be a stability problem where seating death changes can't correct.
I have seen the sweet spot at 3150fps in quite a few rifles. The more strange thing I noted is that 24" barrels were the most common on the rifles I used and tested. Recently write about 3 that I was working with at once and again, all had 24" barrels and all shot best around 3150fps with the 180gn.
I have a spare 26" .300Win barrel in my gun room but haven't wrung it out yet. The interest is there however.
