If the gunfire is constant year-round there is little chance the Deer are spooked. Some of the best hunting I've had was on military gun ranges. After a while, even artillery fire doesn't spook them. Camp Pendelton tags are some of the best you'll find for Mule Deer in California. World-class Red Deer are to be found in the Grafenwoehr military training area. I've watched them stroll through artillery impact areas.