Winchester Model 21

[Parker Bachelder (Brad's Profile)]

Eldon

Your chokes are Bell Chokes, designed to throw extra wide patterns. Winchester designed WS-1 for the best distribution at 20 yards, WS-2 for 30 yards. .005 is Winchesters designation for Imp. Cly..
A Bell choke causes early seperation of the shot cup from the shot column creating a much larger pattern. The down side is holes in the pattern resulting in poorer breaks. These conversions were popular in the 50's and 60's. Stan Baker lead the field in skeet choking.
Parker skeet in and skeet out are the same theory as WS-1 and WS-2.
Your Barrels have been modified.

Brad

[Bill Murphy]

Brad, why do you say Eldon's chokes are modified? It sounds like a standard WS1 choke to me.