Re: Why the change?
I think he meant that some things are best left behind anyway. [img]images/icons/rolleyes.gif[/img]
FWIW on the subject above, I've seen a number of rifles that progress through horizontal to diagonal to vertical strings before settling down to a nice round wad on target. Can't imagine it's anything else but harmonic/vibration changes or in the case in question, bullet jump due to different BC and design of the bullet. I have three rifles that have demonstrated a tendancy to shift laterally with bullet weight changes. I'm not going into a dissertation on the subject as I don't understand it well enough to explain, but Robert McCoy does in "Modern Exterior Ballistics", and M.L. McPherson does as well in the Spring issue of Varmint Hunter Magazine. Hope this helps.