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"When law and morality contradict each other, the citizen has the cruel alternative of either losing his moral sense or losing his respect for the law." -Frederic Bastiat
"I am a conservative. Quite possibly I am on the losing side; often I think so. Yet, out of a curious perversity I had rather lose with Socrates, let us say, than win with Lenin."
― Russell Kirk, Author of The Conservative Mind
Basically, yeah you got lucky. 16 barrels are considered one piece replacement with the fsb, nut, cap all being one unit. With patience and time I have place a used fsb on a new barrel, I've also welded the holes and redrilled one, and I've also placed a new fsb on a predrilled barrel. All worked out pretty well, but took some time to get it right. Also helps to have all the equipment. (welder, mill, proper measuring devices)