7rum brass?

[RockyMtnMT]

Just a quick question. Can 7rum brass be used for 300rum by just necking it up? The 300 brass seems to be non existant, while 7 ultra brass is available.

Thanks guys,
Steve

 

[MagMan]

Yes you could do it. You can get 300 RUM brass from Blue Star Inc.

I'm sure they have new brass and I know for a fact they had alot of once fired for a good price.

 

[RockyMtnMT]

Thanks, I appreciate the info.
steve