IMR 4007 SSC in 6-6.5×47 Lapua
We had a chat yesterday with Ed Eckhoff, who has served as Match Director for the U.S. F-Class Nationals, NBRSA 600-yard Nationals and other major events held at the Sacramento Valley Shooting Center. Ed has been working with the 6.5×47 Lapua necked down to 6mm. Ed told us he was getting good velocity and stellar accuracy with the new IMR 4007 SSC powder. “I was testing recently at 300 yards, and the first two shots pretty much went through the same hole. The group ended up well under .4 inches. Pretty amazing for 300 yards”. Ed is using 39.0+ grains of IMR 4007 SSC with his own custom-made 108 grain boat-tail bullets. Ed said he can get his 108s well over 3100 fps and there has been no stiff bolt lift and no extrusion of brass into the ejector area. Ed’s big question was barrel life. He asked us–“Has anyone shot out the barrel on a 6-6.5×47 yet? I wonder what kind of barrel life can be expected.”
