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Max PSI for an 870 super express
 Moderated by: DesertMarine, bea175
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 Posted: Fri Oct 2nd, 2009 06:19 PM
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d45/70
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I have a new 870 and I'm going to start reloading for it. Where do I find info ? Like the max PSI for the gun, load data,Ext.

 Most of the hulls I have are Estate 3"& 3 1/2 " for steel ans some 2 3/4 from lead loads. Most of my RE loading I think I want to do as lead. Where would be a good spot to get that info?

 I load rifle a lot and I'm going to branch out a bit I think.I have an old Lee loader in 12 and 20 gage in 3" can I get some thing to make it work for 3 1/2" shells??

 Sorry for all the questions, I started out with the PSI thing and they kept coming.Thanks."D"



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 Posted: Fri Oct 2nd, 2009 09:34 PM
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.45 COLT
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SAAMI Max Average is 14,000 PSI for the 12 Gauge 3 ½” shell.

 The description and link below will give you more information about Shotshell Standards than you want or need to know. The book will answer a lot of questions.

 ”The below ANSI/SAAMI Performance Standards books detail the voluntary industry performance standards for pressure and velocity of ammunition for use by commercial manufacturers. Each book includes detailed specifications and drawings.”

http://www.saami.org/Publications/209.pdf

 
Estate hulls generally use data for Federal hulls. Get a good manual – a lot of folks swear by Lyman’s 5th edition of their Shotshell Manual. A lot of data is available online from the powder manufacturers’ websites.

DC

 

 


 Posted: Sun Oct 4th, 2009 01:04 AM
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d45/70
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Joined: Wed Oct 29th, 2008
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Thanks I'll ckeck it out.



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