My build http://savageshooters.com/SavageForu...html#msg320971. My boss gave me a bunch of 6mm brass some where loaded. Some had 70 NBT some had 70 sierra HPBT. Powder unknown, charge unknown (he said some had varget) All he said was they wasn’t hot, he shot them in a 722 or 788 remy. Anyways I’ve been shooting them at the range just to form brass with poor results I might add like (3” to 4” groups) So I got me some powder & my chrony. I tried good old varget this is my 7th rifle that likes varget. 2000-MR, H4350, superformance< check out that speed. H4350 was the worst looked like I was patterning a shotgun. Looks like I have a shooter. I have always found it very stressful to work up a load for a new rifle.