Quote Originally Posted by M.O.A. View Post
Like lets say a 36gn varmint grenade out of the 1-7 twist barrel at like 3800fps and yeah you'll have a problem.
Hmm...all the ones that I've shot would beg to differ. The VG is a very tough bullet with regard to spin. The really low density of the core probably has a lot to do with that. Now a 35gn bullet designed for the Hornet is a totally different story.

As far as dis-similar metals and shifting with relation to each other, look at a bonded bullet. It isn't shifting at all and you aren't spinning one apart.