doublegunshop.com - home Forums General Discussion DoubleGun BBS @ doublegunshop.com Leopold’s Rifle

I have learned never to say never, however I know of no Marlin-Ballard rifle with a factory installed barrel by Rigby. The “Rigby” marked barrels I have seen are the Ballards with Ballard barrels Rigby imported and sold.

The Marlin-Ballard rifling was six narrow lands and wide grooves, right hand twist.
If the rifling in your barrel is different than that I would suggest without having more information that if your barrel is serial numbered to the rifle then it’s a rebore. If the barrel is not serial numbered then it’s a rebarrel.