TM22 Out-of-Battery Discharge / Case Rupture with Aguila Super Extra – Ammo or Gun issue?

[u/sher-e-punjabb]

Hey everyone, looking for some insight on my new TM22. I gave it a full teardown and cleaning right out of the box. Took it to the range yesterday for the first time and ran a variety of ammo through it: * CCI Blazer * Federal * CCI Stinger * Aguila Super Extra

The CCI and Federal ran fine, but I had a scary moment with the Aguila Super Extra. It "went off" while the bolt wasn't fully seated (OOB discharge). The casing was blown out/ruptured. Since I cleaned the gun beforehand and the other brands ran okay, I’m trying to figure out if this is a known issue with Aguila in the TM22 or if I should be looking at the firing pin/extractor. Has anyone else had issues with Aguila timing in this platform?

[u/Status_Ticket5044]

Can't comment authoritatively on the blowout but props for your dedication to the Derya brand.

Which rifle? Aluminum or Poly receiver?

The return spring on the affected rifle any weaker than the others? Barrel joined tight to the receiver?

[u/sher-e-punjabb → u/Status_Ticket5044]

I got just 1, white aluminum one, rest are my friends'

[u/Status_Ticket5044 → u/sher-e-punjabb]

As SBI said here somewhere here, it's likely a one off, what with 22LR being a commodity item. There haven't been rampant complaints about Aguila or TM-22s here habitually doing this and I'm sure there would be.

If it happens again within a thousand rounds, I'd worry, moreso if it's other than Aguila.