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All Springer/NP/PCP Air Gun Discussion General => PCP/CO2/HPA Air Gun Gates "The Darkside" => Big Bore AirGun Gate => Topic started by: melloroadman on August 21, 2011, 12:55:15 PM

Title: Another good casting read
Post by: melloroadman on August 21, 2011, 12:55:15 PM

Found this one today and thought it might help some .Marvin
http://www.gunweek.com/2004/feature1201.html (http://www.gunweek.com/2004/feature1201.html)

Title: Re: Another good casting read
Post by: melloroadman on August 21, 2011, 10:49:55 PM

If you do not want to pay the high price that tin is going for you can use a alloy mix and some math to get were you want . This is not liener but it should be close enough for most .Marvin
 Pounds of Alloy 1 X BHN of Alloy 1

Plus

Pounds of Alloy 2 X BHN of Alloy 2

divided by the total pounds of both alloys....
10 pounds of 5 bhn and 1 pound of 15 bhn = 5.9 bhn