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Rifles, Reloading, Optics, Equipment
Reloading
Fireforming help needed
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<blockquote data-quote="300 Driver" data-source="post: 2890451" data-attributes="member: 91257"><p>It took me a while, but I seem to have figured it out. I couldn't isolate one issue so I basically did what everyone here suggested.</p><p></p><p>I broke the bolt down(not my first time, but WTH) and ultrasonic cleaned, then re-lubed. Pin protrusion was fine. I removed the ejector completely for Fireforming.</p><p></p><p>I then reloaded each case again, but with a .375 shoulder instead of .356. There was barely any difference between an easy bolt close and a hard closure. I went halfway between and then loaded each case with a primer only. I fired 3 primers in each case before I was confident I had solved this. I know I wasted components, but wasn't willing to have another range trip with misfires.</p><p></p><p>fireform load was a crush fit, no jam, 300gr sierra and 70gr W780 from long ago. WLRM primer and Peterson brass. All fired with zero issue today. As a bonus, the rifle is showing some promise. Left group is 50yds and right group is 100yds. I was shooting with my kid at our range and you'll see one of his pulled 22lr shots.</p><p></p><p>either way, I learned a bit along the way here and am ready to start load dev.</p><p></p><p>Thanks to all for the insight!</p></blockquote><p></p>
[QUOTE="300 Driver, post: 2890451, member: 91257"] It took me a while, but I seem to have figured it out. I couldn’t isolate one issue so I basically did what everyone here suggested. I broke the bolt down(not my first time, but WTH) and ultrasonic cleaned, then re-lubed. Pin protrusion was fine. I removed the ejector completely for Fireforming. I then reloaded each case again, but with a .375 shoulder instead of .356. There was barely any difference between an easy bolt close and a hard closure. I went halfway between and then loaded each case with a primer only. I fired 3 primers in each case before I was confident I had solved this. I know I wasted components, but wasn’t willing to have another range trip with misfires. fireform load was a crush fit, no jam, 300gr sierra and 70gr W780 from long ago. WLRM primer and Peterson brass. All fired with zero issue today. As a bonus, the rifle is showing some promise. Left group is 50yds and right group is 100yds. I was shooting with my kid at our range and you’ll see one of his pulled 22lr shots. either way, I learned a bit along the way here and am ready to start load dev. Thanks to all for the insight! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Fireforming help needed
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