I buy boxes from Uline and 3 pvc pipe from Home Depot. The barrels and forend go in the pipe, padded and packed tight. The pipe, cut full length of the interior of the box, goes in the box and the stock/receiver, well padded and packed tight, goes in the box.

I supposed the stock could be damaged in extreme circumstances but nothing will happened to the barrels. Besides protecting the barrels, the pipe shores up the strength and rigidity of the box.

The world cries out for such: he is needed & needed badly- the man who can carry a message to Garcia