Re: Flying w/ammo
What we did when we flew to Nebraska bird hunting was took AA boxes and put our handloaded AAs into them. But they told us that the shells did have to be in factory boxes. They did not open the boxes to check the headstamps or actual shells. We traveled with the shells in our suit cases that were checked, and did not put them in the bottom of the gun case. If you have a factory box of the same head stamp, I feel confident that you would be able to carry them. Even if you do not, I do not think they will check to see if they are headstamped by the same company of the box. I have flown little with guns, so maybe someone with a little more experience may be able to answer your question better. The airport seemed more concerned with the actual guns themself than the ammo being specific to the manufacture's box. Good luck on the trip.
"A true man of honor feels humbled himself when he cannot help humbling others." -Robert E. Lee