I think it is a left-handed caliper, because the letters on the adjustable wrench look normal.

So they still had to clean them all the time as they couldn't ever be sure.

It always be like that. You just never know if this round will blow up your barrel, leave no dirt or just be normal.

After a brief search, indeed, there are not many English sources for this ammo type. I have only found this: https://forum.cartridgecollectors.org/t/iskra-7-62x39mm-5-45x39mm-and-9x18mm-sabotage-cartridges/52606/4

From Russian sources - this ammo was used to clog the barrels of guns. Was produced in 9mm Makarov, 5.45x39 & 7.62(pictures in reverse order.) This ammunition wasn't any different from regular, including weight and markings.

These would defragment/split into pieces inside the barrel, thus rendering the gun sabotaged. These would be issued to Afghanistan soldiers, who would intentionally "lose" several boxes on the battlefield, and if the enemy picked and used the rounds, their guns would be sabotaged.

If we exclude Newton's 3rd law, this will be way more effective against arrows, and demoralizing the enemy.

You bet your ass there us:

https://bostonsmokedfish.com/product/salmon-bacon/

Probably. The same thing works for bears - bears who ate mostly berries have meat, which tastes slightly sweet. This works, I believe, for red meat: https://pubmed.ncbi.nlm.nih.gov/2286578/

Probably feeding a ton of fish to a pig from early life will make the taste more fishy.

That looks like this:

At least it is not Barotrauma that's happening...

Cooper(I think it's its name) my beloved.

He also accused his wife of knowing what concrete is made of on his meds. But this is sweet.