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Rifles, Reloading, Optics, Equipment
Reloading
Brass extreme growth
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<blockquote data-quote="Barrelnut" data-source="post: 1105554" data-attributes="member: 74902"><p>Do you full size your brass each time during prep? Or do you just neck size it until it is tight to chamber?</p><p></p><p>In belted magnum chambers it can be a long ways from the brass shoulder to the end of the chamber. 5 - 8 thousands is not uncommon. Since the cartridge indexes off of the belt on the first firing, the brass can stretch quite a bit before it hits the shoulder in the chamber. I have to fire new brass in my 7RM about 3 times before it hits the end of the my chamber. That is about 8 thousands away. I neck size it until it hits the end of the chamber. After that I bump it back 2 thousands to get longer life on the brass.</p><p></p><p>I think the FC brass is softer than what the rifle has seen before and has stretched more on the first firing. It might even stretch a little further if the brass is only neck sized and fired again.</p><p></p><p>I don't think Mickcr was saying you had a headspace issue, but was just saying brass stretches because of head space. Which, in a way, a belted magnum can have a lot of.</p></blockquote><p></p>
[QUOTE="Barrelnut, post: 1105554, member: 74902"] Do you full size your brass each time during prep? Or do you just neck size it until it is tight to chamber? In belted magnum chambers it can be a long ways from the brass shoulder to the end of the chamber. 5 - 8 thousands is not uncommon. Since the cartridge indexes off of the belt on the first firing, the brass can stretch quite a bit before it hits the shoulder in the chamber. I have to fire new brass in my 7RM about 3 times before it hits the end of the my chamber. That is about 8 thousands away. I neck size it until it hits the end of the chamber. After that I bump it back 2 thousands to get longer life on the brass. I think the FC brass is softer than what the rifle has seen before and has stretched more on the first firing. It might even stretch a little further if the brass is only neck sized and fired again. I don't think Mickcr was saying you had a headspace issue, but was just saying brass stretches because of head space. Which, in a way, a belted magnum can have a lot of. [/QUOTE]
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Reloading
Brass extreme growth
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