My two daugthers (13 and 16) have been shooting the 139gr SST out of their .280 Remington with good success.
They have shot six elk between them, at least 6 deer and three antelope and the bullets worked fine.
A couple bang flops on the elk and they are extremely accurate.
From what I've seen first-hand, no worries IMO.
Last edited by FishN4Eyes; 07/27/11.
