Grendel and 5R Rifling (Haters gonna Hate)

[XcountryRider]

Even still, guys have maxed out with the 120gr SST in the 6.8 SPC with the ARP chamber inside of 2500fps, like in the mid-2400's. Hornady's factory load is a very good velocity-producing load if it registers at 2460fps.

Look at Accurate's loading data for the 6.8SPC. They are using a 20in barrel for the data. Now look at the velocities for the 120gr SST for the 20in barrel. None of the velocities are even getting what i'm getting with my 18in barrel with FACTORY Amax or SST.