Jordanrussell123 Posted April 14, 2015 Report Share Posted April 14, 2015 I just bought a bakial/toz hammer gun and it's got on it 3/14 tons per and pic of a square but it also has 700atm wich doesn't help me because I need to know it in bar so any help would be good thanks lads Quote Link to comment Share on other sites More sharing options...
mickyh Posted April 14, 2015 Report Share Posted April 14, 2015 1 atm = 1 bar (14.7 lbs per square inch at sea level). Quote Link to comment Share on other sites More sharing options...
Flynn Posted April 14, 2015 Report Share Posted April 14, 2015 http://www.wolframalpha.com/input/?i=700+atm+to+bar 700 atm = 709.3 bar Quote Link to comment Share on other sites More sharing options...
Jordanrussell123 Posted April 14, 2015 Author Report Share Posted April 14, 2015 It's 2 3/4 chamber so 700 bar seems low I'm not saying your wrong I worked it out the same but it just didn't seem right for the chamber size Quote Link to comment Share on other sites More sharing options...
wymberley Posted April 14, 2015 Report Share Posted April 14, 2015 (edited) It's 2 3/4 chamber so 700 bar seems low I'm not saying your wrong I worked it out the same but it just didn't seem right for the chamber size No, he's right. Provided the gun remains as proved and is 23/4" chambers, the OP can use any CIP approved cartridges marked 12-70. The 31/4 ton proof mark means the gun is of an age when the lead crusher system prevailed. That service pressure converted to the CIP copper crusher system is 587 bar - as opposed to 495 (31/4 tons) - and the proof pressure for lead similarly changed to 939 for copper. In those days a bar was 14.7lb/sq" as it still is for certain applications. Edited April 14, 2015 by wymberley Quote Link to comment Share on other sites More sharing options...
Jordanrussell123 Posted April 14, 2015 Author Report Share Posted April 14, 2015 The reason why I ask this is because I just payed to get the chokes bored out to 1/4 1/2 so I could shoot standard low pressure steals like steel game or supreme steel can I still do that or should I just buy some bismuth or hevi shot Quote Link to comment Share on other sites More sharing options...
wymberley Posted April 14, 2015 Report Share Posted April 14, 2015 The reason why I ask this is because I just payed to get the chokes bored out to 1/4 1/2 so I could shoot standard low pressure steals like steel game or supreme steel can I still do that or should I just buy some bismuth or hevi shot The reason why I ask this is because I just payed to get the chokes bored out to 1/4 1/2 so I could shoot standard low pressure steals like steel game or supreme steel can I still do that or should I just buy some bismuth or hevi shot Provided it's not damascus barrels , then, yes. The 700 atm stamped is the Russian service pressure but I have no idea what measurement system would have been used - I'll guess lead crusher - but it's academic as the UK proof over-rides it. Please note that I was uncertain about the 700 in my first reply which was not helpful so have deleted it. Quote Link to comment Share on other sites More sharing options...
Jordanrussell123 Posted April 14, 2015 Author Report Share Posted April 14, 2015 Thanks that was very helpful and it's not Damascus barrels so I will be testing it as a wildfowling gun in September thanks agen Quote Link to comment Share on other sites More sharing options...
archiebald Posted April 14, 2015 Report Share Posted April 14, 2015 Good strong guns! I used to have one and miss it verry much. Quote Link to comment Share on other sites More sharing options...
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