A lot of Euro made stuff sported slower twists...like Waetherby's (grins)
My gunsmith has a 1-16 222 Sako; he wanted BT's and had to run 40's to get them to spin.
I read Ken Waters had a hell of a time with 200gr. bullets and a 300 Mag of some Euro sort. He found out it was twisted 1-12.
Alas....
