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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7 mag slow speeds Rl-22
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<blockquote data-quote="Rjrhino88" data-source="post: 1697551" data-attributes="member: 101567"><p>I developed my 7 mag load last year with Nosler 160 accubond. I worked up from 61 to 63 grains(book max) Rl-22 with no pressure signs. I found .5 moa accuracy at 63 grains. Today I went out with a chrono for the first time and measured 2860-2875 FPS. True book speed for this is 3050 FPS with a 26" barrel. I have a 24" barrel with 9.25 twist so I figured I should be closer to 2950 fps. Should I work up the charge higher? Can I trust the chrono? Or should I just stay at this velocity and charge with it being accurate? Thanks for the help</p></blockquote><p></p>
[QUOTE="Rjrhino88, post: 1697551, member: 101567"] I developed my 7 mag load last year with Nosler 160 accubond. I worked up from 61 to 63 grains(book max) Rl-22 with no pressure signs. I found .5 moa accuracy at 63 grains. Today I went out with a chrono for the first time and measured 2860-2875 FPS. True book speed for this is 3050 FPS with a 26” barrel. I have a 24” barrel with 9.25 twist so I figured I should be closer to 2950 fps. Should I work up the charge higher? Can I trust the chrono? Or should I just stay at this velocity and charge with it being accurate? Thanks for the help [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7 mag slow speeds Rl-22
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