We're you crunching powder with 65.5gr and the 180s?N560 and N565 are great for the 7 saum.
N560 63.3 grains 175 elites 2970' 22" proof 1:9
N560 63.0 grains 175 elites 3008' 24" proof 1:8.4
N565 65.5 grains 180 hybrid 2942' 24" proof 1:8.4
What's the barrel lengthWell loaded up 61.7-62.6 in .3gr incrememnts
61.7-3008 avg sd-19
62.0-3037 avg sd 8
Stopped there because bolt started to get slightly heavy. It was about 72 deg out and most likely will back off as I shoot in AZ and summer temps can get pretty high.
This was in a SA 2.96oal