I shot 140gr partitions today as well as 139gr Hornady Interlocks. It didn't care for the partitions much with either 48gr or 47gr of imr4350. 48 grouped about 2" at 100. 47gr grouped about 1.5", maybe a little less.
It REALLY liked the 139gr IL's. But the 47gr load of imr 4350 was the favorite and easy on the shoulder.
