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Rifles, Reloading, Optics, Equipment
Reloading
Once fired Lapua brass necks don't seem to expand with firing.
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<blockquote data-quote="eklarsen" data-source="post: 1317122" data-attributes="member: 93902"><p>I doubt there is an issue but if you want to know for sure call Tikka and ask them what the chamber was reamed, I assume it is SAMMI spec which would be .343 for a .308 Win. </p><p>Based on what you said you have, .308 +.15+.15 (brass size) = .338 so unless it is a tight chamber it should expand to .343 at max which is perfect, but if the chamber is tight or your brass is actually thicker (which I bet it is) there is your answer.</p><p></p><p>Did you mic your brass? If your brass is actually .17 you have no room to expand (.308 +.17+.17 =.342) and should turn your necks down a bit to allow for 2-3 thousand clearance. You can usually feel this when you load a round, it will be tight.</p><p></p><p>It all boils down to how much room it has to expand</p></blockquote><p></p>
[QUOTE="eklarsen, post: 1317122, member: 93902"] I doubt there is an issue but if you want to know for sure call Tikka and ask them what the chamber was reamed, I assume it is SAMMI spec which would be .343 for a .308 Win. Based on what you said you have, .308 +.15+.15 (brass size) = .338 so unless it is a tight chamber it should expand to .343 at max which is perfect, but if the chamber is tight or your brass is actually thicker (which I bet it is) there is your answer. Did you mic your brass? If your brass is actually .17 you have no room to expand (.308 +.17+.17 =.342) and should turn your necks down a bit to allow for 2-3 thousand clearance. You can usually feel this when you load a round, it will be tight. It all boils down to how much room it has to expand [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Once fired Lapua brass necks don't seem to expand with firing.
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