hankook1 Posted March 12, 2017 Report Share Posted March 12, 2017 Hi All, Have these marks on the barrel can anyone tell me exactly what they mean as not sure think the fleur-de-lis is the hp steel mark but what is the 2 crowns with SUP wrote underneath them and also the fleur-de-lis has CIP on top of it ! Quote Link to comment Share on other sites More sharing options...
JJsDad Posted March 12, 2017 Report Share Posted March 12, 2017 (edited) The BNP surmounted by a crown is the Birmingham definitive nitro proof mark. The `SUP` surmounted by double crowns is the Birmingham superior definitive proof mark for high performance steel shot, this mark was in use between 2006 & 2013; replaced by a CIP mark in around 2014. Edited March 12, 2017 by JJsDad Quote Link to comment Share on other sites More sharing options...
Wingman Posted March 12, 2017 Report Share Posted March 12, 2017 What gun is this from ? Quote Link to comment Share on other sites More sharing options...
hankook1 Posted March 12, 2017 Author Report Share Posted March 12, 2017 its a armsan a612 Quote Link to comment Share on other sites More sharing options...
Guest cookoff013 Posted March 13, 2017 Report Share Posted March 13, 2017 The BNP surmounted by a crown is the Birmingham definitive nitro proof mark. The `SUP` surmounted by double crowns is the Birmingham superior definitive proof mark for high performance steel shot, this mark was in use between 2006 & 2013; replaced by a CIP mark in around 2014. +1 Quote Link to comment Share on other sites More sharing options...
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