A friend of mine has an old 257 Roberts his Dad built many years ago on a 98 Mauser action. He cannot get it to shoot accurately, and gave it to me to try and figure out the problem. The barrel is a 11.5" twist, and of course will not stabilize the 117gr ammo he is using. I have looked on the net and can only find two companies loading 100gr bullets, Norma and Nosler. Anybody know of any other factory loaded 100gr ammo for the 257 Roberts that won't break the bank? By the way, his Dad built a really nice rifle. Thanks, Barlow