In SAC/ADC flyoffs, the early Jets had trouble getting a firing solution. At high altitudes, stall speed increases, most famously in the form of the U-2, where top speed and stalling speed were a few knots apart.
B-36 had enough lift and stability(from the props and generous tail), it could out-maneuver the interceptors at high altitudes
One of the reason why ADC gave up on guns, and went unguided FFARs and IR and Radar Falcons
Wanted to be sure of getting that Soviet Bomber,
along with the ultimate unjammable rocket, the AIR-2 Genie
1.5kt of solid rocket fun. No guidance, just the predicting gunsight