[lefteyedom]

I have a 721b 30-06 that was converted to left hand back in the 50s. I want to rebarrel this rifle to 300 Weatherby.

Can this rifle's custom left hand bolt be "opened up" to a magnum boltface?
If not, could a left handed 700 Remington bolt work?

Any ideas?

[Chawbaccer]

Since the 721 was offered in a magnum version I will tentavily say yes, it can be opened up. However, you say yours is a custom made left hand bolt, so you would be wise to have an expert look at it. As for a 700 bolt in the 721, Nope.

Alright now, I want to see a picture of your conversion, sounds "interesting".

[rbernie]

Since it was offered in 300 H&H, this should be do-able given a proper gunsmithing job. I presume that a left-hand bolt was fitted when this rifle was converted, to get the ejector and extractor in the proper place.

[lefteyedom]

Update....
Changed my mind and rebarreled it to 270 win. Easy greasy.... When the time is right I will buy a 300 Weatherby in a Ruger 1.....