My first Contender Carbine barrel was a 21" 30/30... with Sierra 135 grain spitzers, i could make it shoot 3 shots groups at about 1.5" at 100 yards, and at 200 i got groups closer to 4". Not exactly a benchrest winner, but i would not have hesitated to take some 200 yards shots. My barrel also shot the 150 grain Hornady Sipre points about the same... i only tried one factory load, the Rem 150's, and they grouped about 2.5" at 100, i never tried them at 200. If you are a handloader, and do some experimentation, i think you could make that barrel shoot well enough to try a 250 yard shot, if you have a good solid rest.