I am almost all packed for my Texas Trophy Whitetail Deer Hunt coming up in late October. I am taking my Weatherby Vanguard Weatherguard in 6.5 Creedmoor and an additional rifle, my 50 Cal TC Encore Muzzleloader. I have a 2 rifle hard case but I realized that taking black powder pellets, won’t fly. Further, that you cannot take loose primers like 209 shotshell either, even in your baggage. I can take the 50 cal bullets though. So I had new pellets and primers ordered though Cabela’s and arranged permission with my hunt folks and I shipped to my hunt destination in Texas and paid the ship hazard fee of $20.00 (not a PO Box). I can’t take my pellets or primers back home either so may be someone there can use them. Both guns are Leupold scope equipped. The Muzzle loader has a VX-3 2-8x36mm and is set for 100 yards. The Weatherby in 6.5 Creedmoor has the VX-6 3-18x44mm and can shoot Nosler 129g ABLR or 140g AB, hitting the same bullseye at 100 yards but each bullet has its path calculated for long range if that option comes available.
I was able to send my rifle questions to the TSA Contact Center on the web. https://www.tsa.gov/travel/transporting-firearms-and-ammunition
If you have questions, now is the time to ask!
Good Hunting!