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Rifles, Reloading, Optics, Equipment
Reloading
nosler 7mm rem mag shoulder grows .022 after first firing, normal?
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<blockquote data-quote="Black Bart" data-source="post: 1476632" data-attributes="member: 58828"><p>I also just started working up a load for a 7mag. I made a fire form load with 162 amax jammed into the lands and a light charge (starting load in the book). used my magneto speed and got 2600fps. This blew the shoulder forward .016-.019. I then used a redding body die set just short of touching shoulders. This lengthened the shoulders to .022-023. At that point I tried to chamber the brass and felt a fair amount of resistance on closing the bolt. A lot of my brass ended up at .020 after 2nd firing and with a little springback I think this is about .001 short of my actual chambers shoulder. I have had good luck using a redding body die and a lee neck collet die for several guns.</p></blockquote><p></p>
[QUOTE="Black Bart, post: 1476632, member: 58828"] I also just started working up a load for a 7mag. I made a fire form load with 162 amax jammed into the lands and a light charge (starting load in the book). used my magneto speed and got 2600fps. This blew the shoulder forward .016-.019. I then used a redding body die set just short of touching shoulders. This lengthened the shoulders to .022-023. At that point I tried to chamber the brass and felt a fair amount of resistance on closing the bolt. A lot of my brass ended up at .020 after 2nd firing and with a little springback I think this is about .001 short of my actual chambers shoulder. I have had good luck using a redding body die and a lee neck collet die for several guns. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
nosler 7mm rem mag shoulder grows .022 after first firing, normal?
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