Re: 338 Norma
First off the bolt faces are different. So it will not be a simple operation unless you have a Lapua size bolt face. If you have two bolts you would have a pretty cool switch barrel/bolt rifle(s). A gunsmith of the highest caliber that has quite a bit of experience with both calibers is Robert Gradous. (google Gradous Rifles) Tell him his favorite Marine asked you to call.