I tried it, lot# 4773, 29.5 grains, sloooowwww pore through a loooonnnng drop tube, and got 3570 FPS average velocity with SD of 10, no pressure signs. Please beware of loads tried in rifles other than yours. Always work up from a safe charge. I'm using a 22" 14 twist with 52 grain 7 ogive bullets from several makers, and Wolf primers. Accuracy was bad, aggs in the threes and fours, but no worse than anything else I tried. VV133 gave the lowest SD of anything I tried, I just couldn't get the thing to shoot. I think the barrel was bad from the get go, others on this forum have reported competitive accuracy from this cartridge.