STS
Winchester AA hulls today are not the many hundreds of thousands I have reloaded.
I was running 25k rds alone a year in 12 bore, had 11 reloaders up and running all at once - for shotshells.
Winchester came out with the Compression Formed Hull. Revolutionized hull design. This is what folks used for 40 years, and folks think of when AA hulls come to mind.
The equipment broke that made the Compression Formed Hull. Winchester chose to NOT replace with same. Instead went to this HS design.
Now understand, I personally fired nearly a Million rds , if not for sure, of AA as I shot all 4 gauges. I have had 3 pallets of new, and hulls in barns, storage places, and warehouses. I gave away 50k hulls once to a new club.
Given away lots of these, and had a bunch once fired destroyed by fire.
So we got us a pallet of these here HS in all 4 gauges when they came out and to state I / we a bit upset is an understatement.
We got rid of the hulls and half of the pallet. Found us a buyer and got rid of them.
Then Win messed with the brass on promo loads, then the reduced recoil loads were having that "ball" bounce back and hurt folks.
In all my years, never used Remington, unless mandated. And I knew folks that worked at the Rem plant, and have shot at the Rem range.
OLD compression hulls are great. Folks hoard these and use sparingly.
Years and Years ago I used nothing buy Win components in reloading, shot, powder, wads, hull, primers.
Then I always knew to have a backup plan. I also did Fiocchi new shells, shot, and all their components. Federal we had a buddy do for us.
Back when, had us a set up. We had 10 pallets of Fiochhi shells and name a reloading component Fiochhi had/ has - we had it. 200k Fiocchi primers for instance in that order. 4 folks shooting a lot, will go thru a few primers pretty quick. Went went thru 5K the first week, a short week mind you, piddlin and patterning, and making notes.
We had every shot size they had for shot, including the nickle plated, from #9 to 00 buck. See we had some serious shooting to do, and , well we had to know, had to have a backup and another backup in the event supply lines were broke , delayed, or whatever.
STS and Peters blue. Always liked Peters, just would NOT do the green. Heck used to reload the Paper hulls too, I color coded loads, red, and blue.
STS are holding up like the OLD AA did.
Then again Fiocchis are still reloading fine today , as they did back then.
Lavender hulls recently gave us 10 reloads, I have gone 14 with these. Just these 10 had a bit hotter loading for something.
*grin* Fiocchi hulls still do fine for them 28 ga slugs too *grin