Unverified load 8660 in caliber .307 Winchester

LoadID 8660
Bullet Hornady FNSP
Bullet Weight 170 grs
Powder LeverEvolution
Powder Weight 43 grs
Primer CCI #250m
Brass Make Winchester
Barrel Length 20 (inches)
C.O.L 2.45 (inches)
Velocity 2411 fps
Group 100 yds (inches)
Submitted By jht_ms
Gun Info Marlin 336 (.307 Win conversion)
Comment 90* ambient........ES__54.3 SD__27.0 (3gr over Hornady's very conservative max load) found to be just past max in my rifle that can't normally take full, high pressure loads.....with slightly sticky extraction