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Rifles, Reloading, Optics, Equipment
Reloading
Why factory ammo for barrel break in?
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<blockquote data-quote="GLTaylor" data-source="post: 2599338" data-attributes="member: 111593"><p>Longwalker,</p><p>The old rule of thimb was use mag primers at 70gr charge and above. The case geometry of the new short mags has shown that this is not always the case today. </p><p>In older, longer (taller) cases this is still pretty typical. (Like Win Mags) In the newer short/fat cases, you can sometimes pressure out prematurely. Try both types of primers. You may find you can burn more powder/get more speed with a more gradual burn/pressure curve. Your rifle and chrony will tell you what's best</p></blockquote><p></p>
[QUOTE="GLTaylor, post: 2599338, member: 111593"] Longwalker, The old rule of thimb was use mag primers at 70gr charge and above. The case geometry of the new short mags has shown that this is not always the case today. In older, longer (taller) cases this is still pretty typical. (Like Win Mags) In the newer short/fat cases, you can sometimes pressure out prematurely. Try both types of primers. You may find you can burn more powder/get more speed with a more gradual burn/pressure curve. Your rifle and chrony will tell you what's best [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Why factory ammo for barrel break in?
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