"How Hot Does My AK Actually Get?": Notes on Barrel Temperature
A rifle barrel can reach temperatures of around 500 degrees Fahrenheit after firing continuously, and can exceed 1,200 degrees Fahrenheit with rapid firing. It's important to monitor the temperature to avoid damaging the barrel.
Typical Barrel Temperatures
General Firing Conditions
Normal Range Session: During a typical shooting session, a rifle barrel can reach temperatures between 150°F to 500°F, depending on the firing rate and barrel profile.
Sustained Fire: Continuous firing can push temperatures significantly higher. For example, firing at a rate of one round per second can elevate the barrel temperature to around 1,200°F after 300 rounds.
Specific Temperature Thresholds
Firing Rate Temperature (°F)
- 10 rounds per minute ~500
- 1 round per second ~1,200
- Rapid fire (20 rounds in 5 seconds) ~1,000
Effects of Heat on Barrel Life
Heat Management
Too Hot to Hold: A barrel that is too hot to touch (around 130°F to 140°F) may not be immediately damaging, but it can affect accuracy and barrel life.
Cooling Recommendations: It is advisable to allow the barrel to cool down if it becomes too hot to hold comfortably. A cooling period of 10 minutes after several shots can help maintain barrel integrity.
Long-Term Considerations
Erosion Risks: High temperatures can accelerate erosion of the rifling, especially near the chamber area. This is more critical for precision rifles than for military-style semi-autos.
Shooting Strategy: To prolong barrel life, shooters often cycle through multiple rifles or allow cooling periods between shots.