This article has a reasonable answer:
"...a 100-meter weather balloon remained aloft for six days after being shot with 1,000 rounds by Canadian F-18 fighter jets in 1998."
https://www.newsweek.com/police-beg-locals-refrain-taking-po...
"...a 100-meter weather balloon remained aloft for six days after being shot with 1,000 rounds by Canadian F-18 fighter jets in 1998."
https://www.newsweek.com/police-beg-locals-refrain-taking-po...
Nobody should fire a loaded weapon into the air at something 20+ km away. Be pro gun if you want, but don't support and recommend such irresponsible behaviours!