Double loading and double balling a barrel used to be the accepted way of proofing a barrel when you made a rifle. I have done it as well .
In Fact doing so was recommended in a lot of the old Muzzleloading manuals to include those by Sam Fedela .

HOWEVER!!!! Your not supposed to be doing it with the barrel in the gun and up to your shoulder .
Its also should be noted that doing so IS NOT A PROOF in any way shape or form
Doing so doesn�t mean a barrel will hold that charge again or for that mater hold even a lesser charge the next time its loaded.

As to proofing having to be done when you build rifles . Guys , do a search for swampman or read some of the links we have posted . The topic has been covered , time and time again to the point of showing tests where guns were purposely loaded to the point they failed . That included guns with American made barrels
Which didn�t fair any better then Spanish made ones .

He IMO is a sad person that can only get people to talk with him if he trolls .
Let him alone and he will go away for another 3 or 4 months

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