I hunt elk with my 300 WSM and use my 7 STW as a back up. Accubonds have worked very well in both, but I changed over to the ELDX bullets and haven't been disappointed. The 200 gr ELDX in my 300 WSM was Thor's hammer on a nice bull. He looked like he got hit by lightning. I shoot both the 160 & 175 gr ELDX's in my 7 STW. You need a faster twist to shoot the 175 (1:8.5 or less) If you want an all copper bullet, look at the Hammer Bullets. They are fantastic. Terminal performance is nothing but devastating and they are very very accurate and easy to load develop.