Load work up for LAR-8 varmint

[jselsor]

Well while Im waiting for my new RRA rifle to get here I am working out my frustration at the reloading bench! I am working up a pet load for future bulk reloading. I am trying a newer powder called AR-Comp. Anyone have any luck with this? I here it is similair to varget except it meters much better. It also produces similar vel with less powder. I plan to work up to 43 grains. Does anyone know if this is to hot a load for the Lar-8???? Or what type velocites this would produce out of a 20ish barrel?