Has there been a crackdown on surplus supplies? At the NTA there wasn't hardly anything and usually there is a guy or two with a trailer load of ammo cans and a few selling other surplus.

Only saw one ammo can, the one I bought.

My surplus guy has plenty of gear. And has mentioned no crack down or shortage to me.

Try harbor freight for ammo cans cheap. As a matter of fact they have them on sale for $2.99 right now.
just

these are the poly ones but I do plan on stopping in for a few , it is amazing how fast you find stuff to fill up all available ammo cans , just remember to label on the outside

fleet farm had 4.49 50 cal plano plastic cans a few years ago , bought a bunch of them and been waiting for another good sale someplace just recently ran out of cans.

my local hardware store is wanting 11.99 a can for 30cal metal used which isn't horrible other than they look like fair servicable condition not good

the larger ones like 20mm they want 40 dollars for in serviceable but not good condition

PSA armory had the .50 Cal ammo cans built by a US contract supplier for $7.50 last year I bought a few cases. Your right real US surplus has dried up in many places most "surplus" places now are loaded with cheap imported camping gear and other junk from China today.

It gets harder and harder to find the USGI BDU pants any more and then they wanted $30 for the knockoffs and the adjusters don't even hold like the "real" ones.

Local gun show.

Other than a lot of Ammo Troops have been locked up for selling stuff out the back gate of the bomb dump...
If your near a military installation, most have shut down their local DRMO (Defense Reutilization and Marketing Office) turn-in/resale offices. Now everything is being shipping out to regional DLA (Defense Logistics Agency) for disposition and resale. This took away a lot of the local sales and pushed them out to regional areas where you're going to have to buy pallet loads of ammo cans from an online government auction site that is miserable to use. They might even now have conditions to the auctions of the ammo cans as they do the small arms brass - that they can only be purchased by manufacturing/remanufacturing businesses.

I've had problems with them in the past, (involving ammo cans and FedEx) and I hate to send you to them, but, Sportsman's Guide has tons of ammo cans and all different sizes. If you spend the $40 and join the "Buyers Club" And wait for the sales, you can get some deals, WITH free freight.
www.Sportmansguide.com

With the 20mm cans with good seals would anyone feel comfortable storing ammo in a shed without temp control. It would be in the dry. I was just wandering how ammo would stand up to the heat and cold for long periods of time.

Midway USA will sometimes have Military surplus ammo on decent sales. The ammo is usually in stock.

I picked up some of the 2.99 (with coupon )plastic cans from harbor freight , they are not as nice as the Plano plastic or real gi but at that price for sitting on the shelf holding things that get out just a few times a year they work.

What is the going rate on the 30 cal and 81mm boxes?

depends on condition between 8-11 dollars with about a 10 dollar average for 30 cal cans

50 cal cans have been re-purposed as 5.56 stripper clip cans so they are a little more plentiful and are around 10-12 dollars for some in good shape

the big deep cans are running 20-40 depending how big