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jimmyp Offline OP
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https://www.shellshocktechnologies.com/technology/

What do y'all think? Anyone used this ammo?

AAC 5.56 NATO 77 GRAIN OTM SHELL

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Honest assessment? Unless it's materially cheaper or lasts way longer, the problems it "solves" aren't big enough for me to warrant paying more than regular brass prices. Especially in 223 which is predominantly shot out of an AR15 for me - I'm guaranteed to lose a few cases every time I shoot just in the tall grass.


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Originally Posted by Teal
Honest assessment? Unless it's materially cheaper or lasts way longer, the problems it "solves" aren't big enough for me to warrant paying more than regular brass prices. Especially in 223 which is predominantly shot out of an AR15 for me - I'm guaranteed to lose a few cases every time I shoot just in the tall grass.

Made from stainless which runs about 1/10th the price of brass.

Might not even need to resize for reloading.

I see they want $0.11 for 9mm and 0.31 for 300 blackout.

ahhhh... no.

Last edited by antelope_sniper; 05/02/24.

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Stainless, but magnetic enough to pick up that way?


Wonder what alloy


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I may try some, I have an upper that shoots 7 or so into 1.5 @100 with 77 SMK's, so it would be nice to find a cheaper alternative that shot as good.

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I have a lifetime supply of brass, so no interest other than curiosity.

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I’ll watch for a while…


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Originally Posted by Dillonbuck
Stainless, but magnetic enough to pick up that way?


Wonder what alloy

They say there's a lot of nickel in it for high ductility, and it's got to be low in carbides brittleness. Technically "Stainless" begin at 14% Chromium, but I wouldn't be surprised if it was lower but had "stainless properties" due to the high nickel content.

I'd start with something like 316-L. Low carbon (0.03%) and low sulfur, high nickel (10-13%), high silicon (1%) helps it "spring back". At 16.5-18.5% Chromium it should have good stainless properties. To me that feels a little high for this purpose, so it might be something similar with lower Chromium, or perhaps this would work just fine.


You didn't use logic or reason to get into this opinion, I cannot use logic or reason to get you out of it.

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Originally Posted by antelope_sniper
Originally Posted by Dillonbuck
Stainless, but magnetic enough to pick up that way?


Wonder what alloy

They say there's a lot of nickel in it for high ductility, and it's got to be low in carbides brittleness. Technically "Stainless" begin at 14% Chromium, but I wouldn't be surprised if it was lower but had "stainless properties" due to the high nickel content.

I'd start with something like 316-L. Low carbon (0.03%) and low sulfur, high nickel (10-13%), high silicon (1%) helps it "spring back". At 16.5-18.5% Chromium it should have good stainless properties. To me that feels a little high for this purpose, so it might be something similar with lower Chromium, or perhaps this would work just fine.

Stainless steel alloys can be ferritic, austinistic (non magnetic) or martenistic in structure.

Martenistic stainless is magnetic with much higher yield and is the most common in the knife and firearms industry. 416R in barrels and actions, 17-4PH in bolts, actions, revolvers, ect.

I would assume the case would be some martenistic stainless which are all magnetic.

Last edited by JohnBurns; 05/04/24.

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