trad,
fired it in my daughter's Contender 16" carbine. Velocities were 50 fps SLOWER than the WW and Rem 150 factory out of the same barrel. Remember the LeverEvolution ammo was designed for the 24" barreled Marlin XLR series of guns. Accuracy was comparable (good to excellent) but NO better than the "much cheaper" standard factory loads. I've never had any problems with the factory stuff taking large game, deer and elk with the 30-30 Contender.
Doc