Banshee-44 squints at the specs for the Duality. "Looks like somebody patched this together from scrap," he says. "They did a decent job of it, at least."

"Here's the problem," he says, pointing at the compression chamber. "I could pull combat data for pellets, or I could pull data for slugs. But both on one gun?"

He shrugs. "You'll have to do some serious calibration for this. Hope you're ready."