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Rifles, Reloading, Optics, Equipment
Reloading
Bullet touching lands reloading question
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<blockquote data-quote="Varmint Hunter" data-source="post: 1445983" data-attributes="member: 313"><p>It sounds to me like your chamber is not cut correctly. I'm not a gunsmith but have had a few AI rifles. Normally, an AI chamber will headspace about .002" tight so that the un-formed case fits slightly snug when the bolt is closed. This requires the barrel to be turned in a thread or two before cutting the AI chamber. When cut properly, you shouldn't need to load bullets into the rifling because the case can't move.</p><p>However, my practice was to load long (heavy) bullets into the rifling and to use a starting book load with a recommended powder of a medium burn rate.</p><p>Occasionally, it would take two firings to get the new shoulder angles sharp.</p><p>The case head separation that you are seeing is a reason for concern IMO.</p></blockquote><p></p>
[QUOTE="Varmint Hunter, post: 1445983, member: 313"] It sounds to me like your chamber is not cut correctly. I'm not a gunsmith but have had a few AI rifles. Normally, an AI chamber will headspace about .002" tight so that the un-formed case fits slightly snug when the bolt is closed. This requires the barrel to be turned in a thread or two before cutting the AI chamber. When cut properly, you shouldn't need to load bullets into the rifling because the case can't move. However, my practice was to load long (heavy) bullets into the rifling and to use a starting book load with a recommended powder of a medium burn rate. Occasionally, it would take two firings to get the new shoulder angles sharp. The case head separation that you are seeing is a reason for concern IMO. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Bullet touching lands reloading question
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