This is from Barnard's website in their FAQ page.
QUESTION
Can I do a conversion to shoot a smaller sized cartridge in a larger Barnard bolt face, and use say a. 223 in a .308 boltface or a .308 in a .535” Magnum??
ANSWER
Within limits, yes.
Obviously you will replace the barrel .The extractor claw is replaced as well and you may find the extractor is better removed as reliable ejection is not always possible. And your gunsmith should be up with the feeding requirements of Barnard actions
But in the usual target shooting, benchrest and in at least some stable hunting situations the smaller case will feed and extract satisfactorily.
Just wondering if anyone has tried this. If I were to make a switch barrel rifle, could I get away with one bolt and two extractor claws and barrels?
QUESTION
Can I do a conversion to shoot a smaller sized cartridge in a larger Barnard bolt face, and use say a. 223 in a .308 boltface or a .308 in a .535” Magnum??
ANSWER
Within limits, yes.
Obviously you will replace the barrel .The extractor claw is replaced as well and you may find the extractor is better removed as reliable ejection is not always possible. And your gunsmith should be up with the feeding requirements of Barnard actions
But in the usual target shooting, benchrest and in at least some stable hunting situations the smaller case will feed and extract satisfactorily.
Just wondering if anyone has tried this. If I were to make a switch barrel rifle, could I get away with one bolt and two extractor claws and barrels?