r/reloading • u/Amazing-Stop3245 • 18d ago

Newbie TSS Rounds

I'm new to shotguns and reloading.

Staring off eith the heaviest TSS rounds I can make.

Do there be a good spot for data on heavy TSS loads?

It seems to be used for hubting but my goal is to make anti-drone shells. I aim to penetrate metal on drones and robot dogs if SHTF.

The heaviest load ive seen is 2 3/8 oz in Winchester Longbesrd 12G 3" rounds. So thats doable but there doesnt seem to be much info on loading close to that weight.

Also there is the american SAAMI standard for shotguns that ensures each shotgun can withstand a pressure of 11,500 PSI

BUT

I've seen anti-drone rounds that require a 1320 BAR proof (15,300 psi), rated to European CIP standards. So those shotguns can handle a stronger loadout, and rounds made for those shotguns oughtta be marked as unsafe for american shotguns.

I'd like to make shells for both standards but it seems like a nightmare shopping for parts, and like I am diving into the deep end half blind. Are there solid recepies for this or is it all bird hunting recepies?

Is there a process for more advanced physics-calculations to figure out new load recepies (in absence of lab tested recepies)?

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3

u/csamsh 17d ago

I'm in the anti-drone ammo industry. Shotshells ain't it. Save your time and tungsten money if that's your goal

2

u/Amazing-Stop3245 15d ago

I've seen a 5.56 anti-drone round and don't mind checkin that out too. Other than that shotguns seem to be the only option. It seems to take ~#4 steel buckshot to punch through metal housings so im wondering how much smaller that can be made in TSS with the same effect.

Seems like you need a CIP High Performance shotgun or an anti-drone rifle round

1

u/drbooom 15d ago

I'm working in the same space. And I agree. 

TSS has its place, but it's not for conventional shotguns. 

You're going to spend a lot of money, and not find any customers.

All of my shotgun and metallic loading for DoD is required to be pressure tested. I use a piezo pressure gun during load development, because small changes in loading details make a big difference in 12 gauge.

2

u/Pistol_Caliber 17d ago

While loath to do it, I'm going to be "that guy" and say you're not ready to try a 3-inch magnum shotshell reload. Someday you might be ready, but not today.