The Green Valley News is reporting that several sources they spoke with said a target shooter using exploding targets started what became the Sawmill Fire 8 miles east of Green Valley, Arizona. The shooter reportedly tried to put out the fire, but after he failed he called to report it. The officials in charge of suppressing the fire have not confirmed what caused it.
As of Thursday April 27 the fire has burned approximately 40,000 acres and required the evacuation of several areas. The Green Valley News reported that approximately $1.6 million had been spent to suppress the fire as of Wednesday afternoon.
Exploding targets consist of two ingredients that when mixed by the end user create an explosive when shot by a high-velocity projectile. They have caused many fires since they became more popular in recent years, have been banned in some areas, and caused the death of one person. In June, 2013 a man attending a bachelor-bachelorette party in Minnesota was killed after shrapnel from the device struck him in the abdomen causing his death. The Missoulian reported that several years ago a woman in Ohio had her hand nearly blown off while taking a cellphone video of a man firing at an exploding target placed in a refrigerator about 150 feet away.
After the ingredients are combined, the compound is illegal to transport and is classified as an explosive by the Bureau of Alcohol, Tobacco, Firearms, and Explosives and is subject to the regulatory requirements in 27 CFR, Part 555.
Articles on Wildfire Today tagged exploding targets.
Thanks and a tip of the hat go out to Carl.