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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
30 Nosler - earlier then expected pressure signs??
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<blockquote data-quote="Hbb6601" data-source="post: 2205204" data-attributes="member: 31743"><p>First off not complaining as I am loving the rifle and cartridge, I'm just surprised by my experience.</p><p></p><p>I have a 1-10 shilen in 30 Nosler I loaded up new Nosler brass withCCI 250, 178 ELDX's, and Retumbo seated 10 thou off lands at 3.416 - I started by doing a ladder test starting at 82grs and worked up in .5gr increments. My plan was to go up to Nosler max at 87grs. I had magnetospeed and found a good node around 84-84.5 the weird part is I started to see ejector marks but bolt lift was good. This was a new to me used REM 700 action so I thought maybe there was a sharp spot on ejector since primers looked good (weren't flat & no primer crater starting) plus no heavy bolt lift. But when I got to 86 gr I did have a stiff / heavy bolt lift and heavy ejector mark. I was surprised to see this much pressure at this charge compared to book data for Nosler. I ultimately backed all the way down to barely noticeable ejector marks at 84.0grs ave 3079 fps & where SD was 4.8 fps - my group was under .3 MOA. I am happy of course and gun is repeatable with this load, my question is - are quite a few people seeing higher pressures then expected out of this cartridge compared to Nosler load data?</p></blockquote><p></p>
[QUOTE="Hbb6601, post: 2205204, member: 31743"] First off not complaining as I am loving the rifle and cartridge, I’m just surprised by my experience. I have a 1-10 shilen in 30 Nosler I loaded up new Nosler brass withCCI 250, 178 ELDX’s, and Retumbo seated 10 thou off lands at 3.416 - I started by doing a ladder test starting at 82grs and worked up in .5gr increments. My plan was to go up to Nosler max at 87grs. I had magnetospeed and found a good node around 84-84.5 the weird part is I started to see ejector marks but bolt lift was good. This was a new to me used REM 700 action so I thought maybe there was a sharp spot on ejector since primers looked good (weren’t flat & no primer crater starting) plus no heavy bolt lift. But when I got to 86 gr I did have a stiff / heavy bolt lift and heavy ejector mark. I was surprised to see this much pressure at this charge compared to book data for Nosler. I ultimately backed all the way down to barely noticeable ejector marks at 84.0grs ave 3079 fps & where SD was 4.8 fps - my group was under .3 MOA. I am happy of course and gun is repeatable with this load, my question is - are quite a few people seeing higher pressures then expected out of this cartridge compared to Nosler load data? [/QUOTE]
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30 Nosler - earlier then expected pressure signs??
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