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Rifles, Reloading, Optics, Equipment
Reloading
Reviving my 270 Winchester.
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<blockquote data-quote=".30-06" data-source="post: 2535201" data-attributes="member: 123083"><p>chattering marks are most likely and can be be lack of (enough)* lube when sizing. Hard to believe the chamber had imperfections like that... I never seen any chambers like that ever with any factory rifle. IMR 4064 replaced it's original powder, DuPont's 15 1/2, way back when, a write up from Speers first manual. Top velocity is H4831 at one time but nothing really went beyond it now.</p><p>* change</p></blockquote><p></p>
[QUOTE=".30-06, post: 2535201, member: 123083"] chattering marks are most likely and can be be lack of (enough)* lube when sizing. Hard to believe the chamber had imperfections like that... I never seen any chambers like that ever with any factory rifle. IMR 4064 replaced it's original powder, DuPont's 15 1/2, way back when, a write up from Speers first manual. Top velocity is H4831 at one time but nothing really went beyond it now. * change [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Reviving my 270 Winchester.
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