The Sumner family of "Guntucky.” (CMT)

CMT announced a new start date for its delayed series “Guntucky,” about a family that runs a gun range in Knob Creek, Ky., where customers can try out, purchase and sell everything from machine guns to cannons.

At its so-called “upfront” presentation to advertisers Tuesday, the Viacom-owned network said that it will premiere “Dog and Beth: On the Hunt” — that new show featuring former “Dog the Bounty Hunter” stars — April 21 at 8 p.m., followed by the series premiere of “Guntucky.”

“Guntucky” originally was set to premiere Jan. 26, but that launch got scrubbed in the wake of the December school shooting of 20 elementary-school students and six adults in Newtown, Conn.

At the time of the postponement, CMT execs said they were delaying the premiere out of respect to those slaughtered in Newtown, but that they still stood behind the show “100 percent.”

To those not familiar with Knob Creek, it’s famous for its Machine Gun Shoot, held twice a year, in which participants shoot at appliances, vehicles, pyramids of tires and barrels of fuel with pyrotechnic charges attached, among other activities — including a nighttime Machine Gun Shoot involving gas-filled metal drums and explosives.

Pyrotechnic charges are painted orange, for easy spotting by shooters, and they’re set off by the impact of the bullets, “creating fiery mushroom clouds and fireballs from hell,” the range’s Web site says. “The objective is simple. . .destroy everything down range.”

Admission is $10 a day — $5 for children younger than 12.