View Single Post Old November 28, 2009, 08:57 PM   #17 Senior
Member Join Date: October 22, 2006 Posts: 823 Response to 1" per
yard standard for a cyl bore bbl.  It's not so much a particular
source that it was read from , but rather information that has
been accrued over my years shooting a 12 ga. I figure that just
as most firearms ,even of the same make and model, tend to have
preferences for certain types of ammo, so it goes for the ole
shotgun. From experience and discussions with people over that
last 20 years. It averages out that a cylinder bore barrel will
shoot 1 inch per yard, if it is a good one, and it also helps if
it is a more modern one.  In general most shotguns of the riot
gun type would actually shoot a little worse than 1" per yard,
but if you got one that did you considered yourself lucky. Today
they call a barrel cylinder bore when it isn't really a cyl.
bore. Typically they even have some constriction and it varys
between manufacturers. In all actualality they tend to be more
of a fixed