We've been loading varget with a 225 gn ab. Don't shoot well at all. Going to try a speer 250 gn hot core. This gun has a ton of free bore. I slit the neck of a case and just hand started a 225 gn ab chambered it and it didn't seat the bullet. About .250 free bore.
Finally got around to shooting the higher charges. Pushing them faster stabilized them. 36.5 gn of w760 shot the best group. I'll work on seating depth.