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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Importance of case head thickness relating to accuracy
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<blockquote data-quote="Michael Eichele" data-source="post: 26266" data-attributes="member: 1007"><p>About 10-12. Keeping in mind that was full case sized. 3 of them actually split on low pressure loads. Even the shooting session before these slit, the accuraccy had got real bad. Why the accuracy had got bad just because they were thin, I do not know. But I do know that it quit as soon as I got new cases. If you are neck sizing, your cases should last a long time, unless the neck in your chamber is really big. If you are getting just an occasional flier, it could be somthing else too. The list for possibilities could be huge. More common than not though if the rifle shoots very good and loads are fine tuned and components are in good shape, most fliers are caused by the shooter. Sometimes if there is a minor stress point in the barrel, when it reaches a certain temprature it will throw it off. This would of course change as the starting temp of the barrel changed. Keep in mind too that when a barrel warms up, it becomes more intollerant of small mistakes. A little too much preassure on the grip with your middle finger with a warm barrel can cause a right hand flier if you are right handed. I dont know how long your barrel is either, but somtimes if it is a little too short, the muzzle pressure smacks the bullet around on its exit and if you do everything perfectly it will shoot good, if make even minor mistakes, this will affect your performance. Also how far away are your fliers? and how often do they occur? also do they go in a certain direction? Let me know.</p></blockquote><p></p>
[QUOTE="Michael Eichele, post: 26266, member: 1007"] About 10-12. Keeping in mind that was full case sized. 3 of them actually split on low pressure loads. Even the shooting session before these slit, the accuraccy had got real bad. Why the accuracy had got bad just because they were thin, I do not know. But I do know that it quit as soon as I got new cases. If you are neck sizing, your cases should last a long time, unless the neck in your chamber is really big. If you are getting just an occasional flier, it could be somthing else too. The list for possibilities could be huge. More common than not though if the rifle shoots very good and loads are fine tuned and components are in good shape, most fliers are caused by the shooter. Sometimes if there is a minor stress point in the barrel, when it reaches a certain temprature it will throw it off. This would of course change as the starting temp of the barrel changed. Keep in mind too that when a barrel warms up, it becomes more intollerant of small mistakes. A little too much preassure on the grip with your middle finger with a warm barrel can cause a right hand flier if you are right handed. I dont know how long your barrel is either, but somtimes if it is a little too short, the muzzle pressure smacks the bullet around on its exit and if you do everything perfectly it will shoot good, if make even minor mistakes, this will affect your performance. Also how far away are your fliers? and how often do they occur? also do they go in a certain direction? Let me know. [/QUOTE]
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Rifles, Bullets, Barrels & Ballistics
Importance of case head thickness relating to accuracy
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