When I was a younger shooter velocity was always THE goal: the more the better. Shot deer with the regular Roberts and an Ackley version as well. Built a very lightweight Bob for my wife but it took her years to want to use it on deer. Well, last year, she finally decided to try. Loaded her little 20" barrel Mauser with one of the lightest loads I could find: 35/4064 w/ 100gr. Nosler B.T. to keep recoil as low as possible. Now 2 deer later, she's had 2 quick one shot kills at 110 and about 45 yds. Both bullets exited and did much damage. So, even loaded very mild, the little .257 is a lethal killer.