That says it all about H1000 in your gun. I can only hope mine does that well when I get it.
My barrel is a Lilja 1-10 twist, *8 contour w/28 1/2 barrel + Muzzle Brake
. I'm pretty sure H1000 is the way to go, but would like to hear about folks using the Retumbo. If all else fails...I will try both powders when I get the rifle.