When Blackhorn started to sell their volume tubes I bought a package of 24 and until last year I shot my Knight's by volume(110 gr). Mid season last year I bought a powder scale and learned that load of 110 gr. by Vol in those tubes weighed 84 to 85gr. This year I measure by vol first, then weigh each load for more consistency. Any powder over 77 gr goes back in the box. So far on the range, my groups have been very consistent. I'll get a chance to try that load in the field next week. Don't expect much change. I have switched from Hornady's SST 300 gr load, with EZ Load sabots to Harvesters 300 gr Scorpion PT Gold with Black Crush Rib sabots I'll let you know how they perform if I get a shot at anything.