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Rifles, Reloading, Optics, Equipment
Reloading
Rl 25 .243 ai
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<blockquote data-quote="CogburnR" data-source="post: 985912" data-attributes="member: 29174"><p>There are calibers that have secondary pressure spikes, I'm pretty sure that the 243 is one and the 7STW and 7RM, 223, and possibly the 22-250. Without pressure testing equipment you might not know that you are getting a large secondary spike. There are some examples on RSI's site I believe. </p><p></p><p>Sometimes I wonder if that isn't the reason for certain powders not being recommended.</p><p></p><p></p><p></p><p><a href="http://www.shootingsoftware.com/pressure.htm" target="_blank">Rifle Chamber Pressure Testing Software & Load Analyzer | Pressure Trace</a></p><p></p><p><a href="http://www.shootingsoftware.com/barrel.htm" target="_blank">http://www.shootingsoftware.com/barrel.htm</a></p><p></p><p></p><p></p><p>I actually have an early Remington 7mag that had a bulge in the end of the barrel,my gunsmith checked it out and cut off about 1.375" and it is fine now. Bought it for the action but it shoots really well now.</p></blockquote><p></p>
[QUOTE="CogburnR, post: 985912, member: 29174"] There are calibers that have secondary pressure spikes, I'm pretty sure that the 243 is one and the 7STW and 7RM, 223, and possibly the 22-250. Without pressure testing equipment you might not know that you are getting a large secondary spike. There are some examples on RSI's site I believe. Sometimes I wonder if that isn't the reason for certain powders not being recommended. [URL="http://www.shootingsoftware.com/pressure.htm"]Rifle Chamber Pressure Testing Software & Load Analyzer | Pressure Trace[/URL] [url]http://www.shootingsoftware.com/barrel.htm[/url] I actually have an early Remington 7mag that had a bulge in the end of the barrel,my gunsmith checked it out and cut off about 1.375" and it is fine now. Bought it for the action but it shoots really well now. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Rl 25 .243 ai
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