Back to exploding RIFLE barrels: Have any of us actually witnessed a BP rifle barrel blow up? If so, what was the purported cause?
Yes. I have seen a ML barrel explode on a YouTube "Educational Video" by two morons concerning how using modern smokeless powder in a muzzleloader is "not a good idea."
Cause:
Smokeless Powder.
Rifle:
Appeared to be a CVA/Traditions "Kentucky" Rifle.
The stock, trigger, breech, and percussion side lock were destroyed.
Surprisingly, the drum and nipple remained intact with the breech plug, in what was left of that poor abused CVA/Traditions "Kentucky" rifle's barrel.
The two "people" (note quotes) responsible for the video are "morons" in my book, for intentionally destroying a fine ML rifle.
As for personally witnessing a ML barrel blow at the range or during a reeinactment, no.
No, I have not seen that.
Full Disclosure:
Nor have I witnessed a modern cartridge arm blow it's barrel.
It would seem those who hand load follow the recipies in the various reloading manuals for whatever caliber they are reloading.