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Hunting
The Basics, Starting Out
Point of aim - hits to left and low
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<blockquote data-quote="Stocky" data-source="post: 451937" data-attributes="member: 17019"><p>Every powder / bullet / primer /case combo has the potential to shoot to a different POI (point of impact) for a variety of reasons, not the least of which are barrel harmonics, pressure curves, standard deviations within any given load, built up internal metal stresses from machining, the list goes on and on. When you think about it, that's where the BOSS system, cryogenic treating, etc. comes into play. They are all attempts to minimize the effects they have on point of impact/group size.</p><p></p><p>As one works up several loads for any given rifle, this becomes more obvious. While trying several loadings for any rifle, one pays attention to the group size, not the center of the group. Plenty of time to adjust the crosshairs once a load is settled on.</p><p></p><p>One of the things reloaders cherish are loads that shoot to the same POI, especially with different bullet weights. Some rifles are far more forgiving than others, some cartridges have better reputations for putting different loads to the same POI than others. One may even develop loads for this trait, for example, a .30/06 that shoots 150 Accubonds and 200 Partitions to the same POI for an upcoming western deer/elk combo hunt.</p><p></p><p>Hope this helps...</p></blockquote><p></p>
[QUOTE="Stocky, post: 451937, member: 17019"] Every powder / bullet / primer /case combo has the potential to shoot to a different POI (point of impact) for a variety of reasons, not the least of which are barrel harmonics, pressure curves, standard deviations within any given load, built up internal metal stresses from machining, the list goes on and on. When you think about it, that's where the BOSS system, cryogenic treating, etc. comes into play. They are all attempts to minimize the effects they have on point of impact/group size. As one works up several loads for any given rifle, this becomes more obvious. While trying several loadings for any rifle, one pays attention to the group size, not the center of the group. Plenty of time to adjust the crosshairs once a load is settled on. One of the things reloaders cherish are loads that shoot to the same POI, especially with different bullet weights. Some rifles are far more forgiving than others, some cartridges have better reputations for putting different loads to the same POI than others. One may even develop loads for this trait, for example, a .30/06 that shoots 150 Accubonds and 200 Partitions to the same POI for an upcoming western deer/elk combo hunt. Hope this helps... [/QUOTE]
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Hunting
The Basics, Starting Out
Point of aim - hits to left and low
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