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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Sendero seems to have a tight chamber
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<blockquote data-quote="Coyboy" data-source="post: 333402" data-attributes="member: 3733"><p>Your primers are cratering due to excessive clearance between the fire pin and hole. If you look at the radiused perimeter of the primer it is nice and round and not at all flat. You have mild chamber pressure with those loads.</p><p></p><p>You may have a minimum headspace on the chamber, that is a good thing, or you could have some debree in the chamber. Or an ejector button that for some reason is not going all the way in. All easy stuff to check. Run a pc of brass into your FL die and see how it chambers with no powder or bullet seated. make sure the shell holder makes firm contact with the die.</p></blockquote><p></p>
[QUOTE="Coyboy, post: 333402, member: 3733"] Your primers are cratering due to excessive clearance between the fire pin and hole. If you look at the radiused perimeter of the primer it is nice and round and not at all flat. You have mild chamber pressure with those loads. You may have a minimum headspace on the chamber, that is a good thing, or you could have some debree in the chamber. Or an ejector button that for some reason is not going all the way in. All easy stuff to check. Run a pc of brass into your FL die and see how it chambers with no powder or bullet seated. make sure the shell holder makes firm contact with the die. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Sendero seems to have a tight chamber
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