i hunt moose every year and i havent had a problem with winchester 180gr silvertips. they seem to shoot excellent for me. i bought a box of remigtons core lokt 180gr but havent tried shooting them yet, gun frooze up last weekend, too cold. i think even if the core lokt works good, i will still stick to the silvertips, i find that a person doesnt need to spend thier money on the premium bullets, the average ones are just find, place the bullet in the right place and anything will go down.