eddie_v21
You asked a perfectly legitimate question. I have read every reply so far and if there were any real answers to you question, I must have missed it.

The easiest way to explode a blackpowder rifle is to use Smokeless Powder instead of Blackpowder, or an approved black powder substitute.

Another way to explode a black powder rifle is to not fully seat the projectile on the powder. If that person who exploded his rifle bringing in the New Year hadn't cleaned his rifle since he shot it last new year, his chances of getting his projectile all the way down the barrel were probably slim at best. The more air between the powder and the projectile, the more trouble you will probably be in.

Then, there is the overcharging method of blowing up a black powder rifle. This is where too much powder is poured, and the projectile is actually seated on the charge. This is probably the hardest way to blow up a gun, although I consider it entirely possible.

Add alcohol to the mix, and it will only help insure the integrity of the human gene pull.

I have shot black powder rifles since the early 80's. I consider it a perfectly safe sport that I share with my family. Know the do's and don’ts of your particular rifle, and use your head. You will be fine.

I personally have not heard many occasions.

C. Davis