I have 4 boxes of Herter's 300 win mag, 180 GR SPCE , (soft point cutting edge) manufactured by Sellier & Bellot for Cabela's for sale at $25 a box of 20.
for info:
https://www.sellierbellot.us/products/rifle-ammunition/rifle-ammunition-spce/
One unopened box of 50 Hornady Cartridge...
This thread made me wonder how any rounds went through my fathers C&H H press. I think he bought it in the 50's and used it until he couldn't see to reload anymore (2007?).
I use a golden rod, but if your safe doesn't have an interior outlet or a hole to add power ... Eva-Dry Wireless Mini Dehumidifier or the like, but you have to monitor and dry as necessary (like when you change your furnace filter)... it simply plugs into the wall to dry out...
Good Luck in your home search and welcome to the forum. My "experience" living up that way was 25 yrs ago, (wife was stationed at Ft Meade, I was at Crystal City) ... be patient, you'll find the right home eventually, and you will enjoy MD and surrounding areas. Lots to do here.
My experience with Numrich is mixed.. I never did find a front sight for a Ruger RSI 250 Savage... the website is a pain.. and calling on some parts is hopeless.
A "history" ? My Charles Daly commander was on "SALE" at T.B. because it was dropped when stolen and had marks when it was recovered and returned to the store...