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Rifles, Reloading, Optics, Equipment
Reloading
7mm Rem Mag Reloading
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<blockquote data-quote="LaHunter" data-source="post: 1277921" data-attributes="member: 54963"><p>When you state that your 'max load' was 69.5 grains with no signs of pressure, what are you basing 'max load' on? Is this the listed max load in the reloading manual?</p><p></p><p>This may or may not be 'max load' for your specific rifle. You may want to continue increasing the powder charge in .2 or .3 grain increments to determine at what point you start seeing pressure signs. A sticky bolt is a good indicator. This COULD be as high as 1.0-2.0 grains higher than the published max load. You MIGHT find that your groups get even better, or you may see the groups get worse, but at least you will know the peak accuracy. After this, I would start working on seating depth. Just make sure you keep your seating depth so that you are not touching the lands because this will surely result in a big pressure spike. </p><p>This is what worked well for me. </p><p>With my rifle, and the specific powder, bullets, primers, brass prep, seating depth, etc, I see optimum accuracy when my ammo is loaded slightly above published max.</p><p></p><p>By the way, 1.3" groups at 200 yards with a factory rifle is pretty darn good!</p><p></p><p>Good Luck</p></blockquote><p></p>
[QUOTE="LaHunter, post: 1277921, member: 54963"] When you state that your 'max load' was 69.5 grains with no signs of pressure, what are you basing 'max load' on? Is this the listed max load in the reloading manual? This may or may not be 'max load' for your specific rifle. You may want to continue increasing the powder charge in .2 or .3 grain increments to determine at what point you start seeing pressure signs. A sticky bolt is a good indicator. This COULD be as high as 1.0-2.0 grains higher than the published max load. You MIGHT find that your groups get even better, or you may see the groups get worse, but at least you will know the peak accuracy. After this, I would start working on seating depth. Just make sure you keep your seating depth so that you are not touching the lands because this will surely result in a big pressure spike. This is what worked well for me. With my rifle, and the specific powder, bullets, primers, brass prep, seating depth, etc, I see optimum accuracy when my ammo is loaded slightly above published max. By the way, 1.3" groups at 200 yards with a factory rifle is pretty darn good! Good Luck [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
7mm Rem Mag Reloading
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