The worst ive shot was a Ruger No.1 in 300 Weathery. I dont mind shooting the big guns but the biggest gun ive shot was a 300 Ultra Mag in a custom lightweight rifle. Now my dad on the other hand wont shoot my Tikka T3 in 300 WSM. He said it hurt too much to shoot it. I shot 2 boxes of ammo from it and it never botherd me. He only shot 2 rounds and wont ever shoot it again.