The pic to the left is my 220 Swift. Barrel is a McGowen in a #4 Shilen contour at 26"
With the capacity of the Swift, I'd shy away from a 7 twist unless you really wanna shoot 90's. If you try anything lighter, you may get blow ups.
Here's a better view:
[img width=600 height=450]http://img.photobucket.com/albums/v284/trappst/220Swift003.jpg[/img]
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