Dynamite generally contains a stable nitroglycerin -based high explosive, whereas M-80s or any other kind of firecracker contain a low explosive powder, like flash powder or black powder.

Get safety guidance on M-80s, cherry bombs, and quarter sticks, including what they contain, why they’re banned, and why consumers shouldn’t handle them.

Jul 24, 2015 · Their chemical compositions make them inherently unstable, and they contain vast amounts of explosive powder. While any firework carries some risks, the very nature of M-80s and …

Aug 26, 2025 · The prohibition of M80s is due to their inherent danger and explosive power, which far exceeds limits for consumer fireworks. Originally developed for military use to simulate explosives, …

Oct 24, 2024 · The primary danger of M80s lies in their explosive power. An M80 can produce sound levels exceeding 130 decibels, comparable to a gunshot, leading to potential hearing damage for …

The M-80 is a cylindrical explosive device originally developed by the U.S. Department of Defense in the late 1920s as a training simulator to mimic the auditory and concussive effects of artillery fire or …

But the composition in dynamite (which varies widely) is a high explosive, while the chemical composition in an M-80 (so-called "flash powder") is a low explosive, at least from a scientific …

Learn what the biggest legal firecrackers are in the USA and why M-80s and cherry bombs are banned. See legal limits and safer options to buy.

Note that despite their destructive potential, the M-80 being classified as an explosive is debatable. They produce varying strengths of shock waves. As a result, several governments have classified such …

Genuine M - 80s have paper endcaps, and contain 50 – 60 times more powder. M - 80s containing the full original explosive charge continue to be manufactured, bought, and used illegally in the United …