I got Bushnell Tropy 6-18 on my .300wbymag and i want to put the Trophy on a new .223. I got two scopes but i'm concerned which, either the Nikon 3-9 Pro-staff or Bushnell Banner 3-9 BDC, will hold up to the .300 better. anyone have experience with these or similar scopes on a .300 magnum, or just ideas?