So, the Nikka "From The Barrel" whiskey...

The website says, ""From the Barrel" is bottled directly from re-casked barrels of whisky and features almost the same alcohol percentage." What exactly does this mean? The alcohol % is stated as 51.4%, but this obviously (?) is not the proof coming off the barrel...

Anyone know this story? I'm going to ask the Nikka rep, but I wonder if anyone here knows.

Thanks in advance.