Steve maybe PeteM will pop in with a more detailed answer but in Europe (Germany?) some proof bureaucrat decided to call .410 36 gauge and make it the official designation and to stamp it on barrel flats. Four-ten is most certainly 67 gauge if you do the math.

So it is proper to call .410 36 gauge even though it is not really.

Best,

Mike

Last edited by AmarilloMike; 12/05/12 01:31 PM.

I am glad to be here.