Originally Posted by hanco
I might be able to email them Barnes boys, see what they have to allow on using that bullet-twist combination.

Nosler has 22-250 data for fast twist barrels and heavy bullets: https://load-data.nosler.com/load-data/22-250-remington/ There isn't any data there for mono-metal bullets but it should get you started.

Hodgdon has load data for the 62 gr Barnes on their website; start here: http://www.hodgdonreloading.com/data/rifle

Pursuit may be, it seems to me, perfect without possession.
Robert Kelley Weeks (1840-1876)