Originally Posted by Parabola
[Linked Image from i.imgur.com]

This Holland and Holland double Rook Rifle in .360 No. 5 was brought along to the recent British Sporting Rifle Club Historic Shoot.

The Proof Marks show .350 ( bore diameter) and the owner tells me it measures.367” across the grooves.


Those grooves are more like canyons! Is that typical?

Could this barrel have been "freshened"?
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BrentD, (Professor - just for Stan)
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[Linked Image from i.imgur.com]