Did you hear that boom? It may have been Tannerite - WNEM TV 5

Did you hear that boom? It may have been Tannerite

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Deputies were called out to investigate after a large boom rattled windows over the weekend in Isabella County.

TV5 had multiple people contact us on social media after the loud noise was heard on Saturday, Jan. 27.

The Isabella County Sheriff’s Office said they were called out to the 4000 block of E. Coleman Road about 6:30 p.m. following the noise.

While deputies didn’t find the source, Sheriff Michael Main said it could have been caused by an explosion of Tannerite.

Tannerite is a powdery substance used for firearms practice. When hit by a high-impact rifle, the explosion can make a large booming noise, similar to a firework going off.

Main said a previous loud noise investigation his department responded to was near Blanchard and was heard up to seven miles away. The cause was Tannerite.

"Over the last few years we've had a few reports of some explosions similar to that and we found out that it was Tannerite being used," Main said.

There are no ATF restrictions on Tannerite at this time and it is not illegal, according to Main.

Main said if you're going to use Tannerite to do so in an open area and keep it away from any buildings or structures because the debris could be harmful.

"The biggest thing is don't use large volumes. Don't use big amounts of it. You know, that's not what it's designed for. You know it is still an explosive and still goes off so just be careful," Main said.

If you happen to find yourself near one of the loud explosions you should still call your local authorities for your own safety, just in case something else is behind the boom.

"We certainly want to go and try and investigate and try to make everything safe. So absolutely, make those phone calls to the dispatch center and we'll investigate to the best we can," Main said.

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