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Rifles, Reloading, Optics, Equipment
Reloading
Am I having a pressure problem.
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<blockquote data-quote="Harry Knutz" data-source="post: 2614382" data-attributes="member: 123671"><p>I don't see how the expander ball could push the shoulder back? The expander ball expands the inside of the neck. If you are not using the "COW" Method, Then the other methods are to "Create a False Shoulder" Or "Jam into the Lands" It doesn't really matter as long as you are pushing the head of the brass against the bolt face. If not then the brass isn't sized properly when it fire-forms and you may get case head separations. It sounds like you have used all of the methods other than the "COW". The Edge is a "Wildcat" But it's not a true "Ackley" The Ackley system is made to partially headspace on the datum with a factory round and fire-form without any of these methods. The easiest way for those that don't do this all of the time is to "Jam".</p><p></p><p>I don't have any experience with "ADG" brass, I do have a 300 RUM, But when I got it at the time all I could find was Remington and Nosler brass. I bought the rifle to build an Edge, But I found I like the 300 Rum pretty well.</p><p></p><p>If I am understanding you correctly, You used 338 Rum loads to fire-form correct? If that's true, I beleive the 338 Rum case has quite a bit less capacity than the 300 rum case you are using to fire-form into 338 Edge, As I stated earlier in the thread, Under-filling the large cases can cause huge pressure spikes, This may have been what happened. Was there good case fill or was the powder at the case shoulder junction when you loaded them? If you would like, I can ask my old boss who I used to build rifles for what his edge loads are for fire-forming, He's a Big Edge guy. I used to do a lot of barrel work for him.</p></blockquote><p></p>
[QUOTE="Harry Knutz, post: 2614382, member: 123671"] I don't see how the expander ball could push the shoulder back? The expander ball expands the inside of the neck. If you are not using the "COW" Method, Then the other methods are to "Create a False Shoulder" Or "Jam into the Lands" It doesn't really matter as long as you are pushing the head of the brass against the bolt face. If not then the brass isn't sized properly when it fire-forms and you may get case head separations. It sounds like you have used all of the methods other than the "COW". The Edge is a "Wildcat" But it's not a true "Ackley" The Ackley system is made to partially headspace on the datum with a factory round and fire-form without any of these methods. The easiest way for those that don't do this all of the time is to "Jam". I don't have any experience with "ADG" brass, I do have a 300 RUM, But when I got it at the time all I could find was Remington and Nosler brass. I bought the rifle to build an Edge, But I found I like the 300 Rum pretty well. If I am understanding you correctly, You used 338 Rum loads to fire-form correct? If that's true, I beleive the 338 Rum case has quite a bit less capacity than the 300 rum case you are using to fire-form into 338 Edge, As I stated earlier in the thread, Under-filling the large cases can cause huge pressure spikes, This may have been what happened. Was there good case fill or was the powder at the case shoulder junction when you loaded them? If you would like, I can ask my old boss who I used to build rifles for what his edge loads are for fire-forming, He's a Big Edge guy. I used to do a lot of barrel work for him. [/QUOTE]
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Am I having a pressure problem.
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