Mythbusters: Does Excessive Lubricant Cause Primer Failures In Glocks & AR-15 Rifles (HD
This Mythbusters-style test debunks the theory that excessive lubricant causes primer failures in firearms. After submerging ammunition for Glock 24 (.40 S&W) and AR-15 (.223 Remington) in motor oil for nine days, both firearms fired all rounds without issue. The video emphasizes that while extreme submersion is not recommended, proper lubrication is essential for firearm reliability.












