6.5PRC 20" barrel at 800 yards

[Sevens]

I’m getting 2808 out of a 20” 6.5 PRC with factory Barnes 127 LRX. Not overly impressive, but able to hit 800 yards with it at the range from props.

 

[mtnrunner260]

Is this max charge or could you push it more? What barrel twist?

8 twist and I tap the case to settle powder to avoid crunching while seating bullet. So max charge.