Guess I must be the outlier on the 257Roberts bell curve. I have worked with 5 different 257's (still have 3).

I tried the "magic" load of 100gr Hornady's with 4350 in all of them without success. And subsequently found happiness with other loads in each of the rifles. go figure.

I have one more chance,though. A M70 FWT is on order, and I will try the "magic" load first...