I was brewing up a plan in my head last week for a .257 or .308 barrel on the Bd platform.Outstanding work!Thinking a longer .357 barrel could be used as well.I did come across a .357 1:16 twist 34" long blank.But I have no clue where to start to make the lead in.Barrel blank was a 1" o.d.
Mike , Are you modifying the magazines for each caliber ? I wonder if thereís someone out there that would print new ones .
Did you checkgtbulletsRimrockbulletsWestern bulletsGt has some 55 grain .257 and will be the cheapest.Casted in .258http://www.westernbullet.com/25caliber.html
Has anyone been shooting a .257 in a 1-10 twist? Iím looking for advice on bullet weights.