Thanks for the info Pete, will keep that in mind. I`ve a new, 300 rnds down it, Pac-Nor chambered for the 250AI on the tube gun. Shoots so damned good I hate to change it. But, I`ve also SA 700, same chambering, that has many,many more down the tube. This one is my hunting rifle too, so that 7.5 twist does not sound that "over stabelization" is an issue with either of the 115grn bullets. Could be a good candidate for a barrel change.
Thanks again.