Patting an assault rifle, Kessler said, "This is the friend that Eric's going to meet today." After firing a volley at the target, he said, "Eric got a couple rounds to the head."
In an earlier video, Kessler savaged Secretary of State John Kerry as a "traitor" over a U.S.-backed international arms treaty. "COME AND TAKE IT!" he screamed, firing a machine gun.
Kessler said he posted that video and others like it partly out of frustration, and partly in an effort to get people to pay attention to an issue he holds dear: the erosion of Second Amendment and other constitutional rights.
"It was shock and awe," he said. "I could have went out there and did a nice video ... and nobody would've gave it a second look."
Now that he's achieved a measure of notoriety for his obscenity-filled rants against government tyranny and people he calls "libtards," Kessler said he worries the federal government will try to silence him. He predicted chaos if that happens.
"God help them if something should happen to me," he said. "I believe that could spark the next American Revolution."
Kessler insisted he's "not calling for anybody to take up arms against our government."
But he also warned the government would be in a fight if it ever tried to take away his guns.
"I would resist," he said. "I'd fight for freedom, and if it cost me my life, then so be it."
The FBI said it's aware of the police chief and his videos.
Kessler said he decided to speak out after the Obama administration began a push for new gun laws in response to the massacre at Sandy Hook Elementary School in Newtown, Conn.