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Rifles, Reloading, Optics, Equipment
Reloading
Head spacing and seating depth!
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<blockquote data-quote="boomtube" data-source="post: 753764" data-attributes="member: 9215"><p>There are several easy ways to see when you're in or off the lands. They all work but the easiest to explain is to seat a bullet long and paint it with a dark color 'dry erase' marker. Carefully insert it in the chamber (the ink wipes off easily) and close the bolt. Take it back out and see if you can tell where the lands are. If you can't see the lands you aren't there yet, if you do see the land's marks seat deeper and continue painting, testing and seating until you don't see it anymore - then, if it will fit your magazine and feed, that's your MAX OAL. </p><p> </p><p>Most factory rifles shoot best with a jump to the lands of 20 thousanths or more. By developing your load near the lands first and then doing seating tests by moving away from the lands you will be safe and you should find your best load for that powder/bullet combination pretty quickly.</p><p> </p><p>IF your seating ends up long don't worry about the 'conventional wisdom' of seating one caliber deep; a lot of cartridges have necks shorter than one caliber!</p></blockquote><p></p>
[QUOTE="boomtube, post: 753764, member: 9215"] There are several easy ways to see when you're in or off the lands. They all work but the easiest to explain is to seat a bullet long and paint it with a dark color 'dry erase' marker. Carefully insert it in the chamber (the ink wipes off easily) and close the bolt. Take it back out and see if you can tell where the lands are. If you can't see the lands you aren't there yet, if you do see the land's marks seat deeper and continue painting, testing and seating until you don't see it anymore - then, if it will fit your magazine and feed, that's your MAX OAL. Most factory rifles shoot best with a jump to the lands of 20 thousanths or more. By developing your load near the lands first and then doing seating tests by moving away from the lands you will be safe and you should find your best load for that powder/bullet combination pretty quickly. IF your seating ends up long don't worry about the 'conventional wisdom' of seating one caliber deep; a lot of cartridges have necks shorter than one caliber! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Head spacing and seating depth!
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