I have owned two 257 Robts and two 25-06's. I had problems with both Roberts, and this is rarely discussed, even in the good articles, like the one noted by Chuck Hawks. The Roberts that I owned, like most, were on the same action length as the 25-06. One of them had no magazine block, and cartridges often tipped in the magazine, or worked their way forward in the mag. Cartridges usually feed best when the case head is pushed back in the magazine, and so it was with this rifle.....not feeding well at times. The Win 70, also on an 06 length action, had a magazine block so short that even 100 grain bullets required such deep seating that accuracy was effected. I solved my problem by getting a short action 250 Savage, and a Ruger 77 in 25-06. I have no specific knowledge of the Kimber 257 Roberts. I know it is sacrilege.... but I could not appreciate the difference between any of them in the field.......FWB