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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 PRC Ballistics - drops don’t match ballistics chart
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<blockquote data-quote="Holycity73" data-source="post: 1744203" data-attributes="member: 106526"><p>Real quick...</p><p>POI can shift due to anything from ammo and brass to temperature and support system. Testing should always be done in a controlled environment using the same shooting position, support system and if possible, atmosphere(Indoor for example).</p><p>trusting load data from a manufacture is a nice place to start. The real data comes from load development to the specific rifle only. Load data must be proven true. The ONLY way to do so is through shooting at known distance.</p><p>Everyone wants to pretend that their numbers are set in stone once a rifle is dialed. This is far from true.</p><p>You POI is subject to the world around it once it leaves the barrel.</p><p>Using a tripod for testing shows poor fundamentals in regard to a baseline, that's all. Adding more variables for failure proves that. Bench or prone with good support fore and aft for load data are best.</p><p>Now as for real world applications once development has concluded, I encourage everyone to shoot as many positions with as many support systems as possible. It makes you a better shooter AND prepares you for the INEVITABLE POI SHIFT.</p><p>I would never attest to a shooters fundamentals, or lack there of, without spending range time together. what I can easily attest to is the frustration of the forums telling you what you're doing wrong and even more rarely, right.</p><p></p><p>Go shoot your rifle as much as possible. Get a good shooting partner. Go out and kill stuff.</p><p></p><p>ps, I run a 6.5PRC with stellar results. Did no one ask how many rounds the op has through his barrel? Mine sped up significantly around 90 rounds... and the POI shifted</p></blockquote><p></p>
[QUOTE="Holycity73, post: 1744203, member: 106526"] Real quick... POI can shift due to anything from ammo and brass to temperature and support system. Testing should always be done in a controlled environment using the same shooting position, support system and if possible, atmosphere(Indoor for example). trusting load data from a manufacture is a nice place to start. The real data comes from load development to the specific rifle only. Load data must be proven true. The ONLY way to do so is through shooting at known distance. Everyone wants to pretend that their numbers are set in stone once a rifle is dialed. This is far from true. You POI is subject to the world around it once it leaves the barrel. Using a tripod for testing shows poor fundamentals in regard to a baseline, that’s all. Adding more variables for failure proves that. Bench or prone with good support fore and aft for load data are best. Now as for real world applications once development has concluded, I encourage everyone to shoot as many positions with as many support systems as possible. It makes you a better shooter AND prepares you for the INEVITABLE POI SHIFT. I would never attest to a shooters fundamentals, or lack there of, without spending range time together. what I can easily attest to is the frustration of the forums telling you what you’re doing wrong and even more rarely, right. Go shoot your rifle as much as possible. Get a good shooting partner. Go out and kill stuff. ps, I run a 6.5PRC with stellar results. Did no one ask how many rounds the op has through his barrel? Mine sped up significantly around 90 rounds... and the POI shifted [/QUOTE]
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6.5 PRC Ballistics - drops don’t match ballistics chart
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