I shot several elk with my .270 back in the day that I rifle hunted, and I used both the 150 gr. Nosler Partition and also used the 140 gr. Fail Safe. The 2 elk that I shot with the Fail Safes both were pass throughs, no recovered bullets and all the elk I shot with the Noslers(8 of them)weren't pass throughs. Always found the bullet under the off side skin. BUT, they both worked very well.