Mike --
I found the Winchester Model 21, barrel finishing, discussion you posted interesting. But, in your posting the Winchester discussion of barrel regulation was solely focused on the height of the point of impact for both barrels with respect to the siting plane. The bending process is clearly a way of controlling the height of the point of impact -- at least on SXS designs. The bending process affects both barrels in roughly the same way in moving the respective patterns up or down. O/U designs may not be amenable to this approach with respect to point of impact height, based on structural considerations related to stacked barrels.
But, in the posted outline on barrel regulation there was no reference to barrel regulation procedures related to superimposing the point of impact of both barrels on the same point at 40 yards. Here, I am referring to the barrel to barrel pattern regulation. Was there any discussion of this point in the Winchester reference?
Thanks.
Best Regards,
Don
