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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Understanding cartridge efficiency
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<blockquote data-quote="bigngreen" data-source="post: 1914808" data-attributes="member: 13632"><p>We all are looking for different things down to how a case even looks sometimes, some like to shoot small, some like to launch missiles some just like volume shooting, to get our panties wadded up over this stuff is kinda like burning you own house down because something made you mad!!</p><p></p><p>There are things we can manipulate in case design, when we chamber and finish and how we load separating out those things is difficult at best, one thing I can't control without major over haul is the case heads response to pressure, there is some ways to work with it in some smaller cartridges but it's much harder the bigger we go.</p><p></p><p>When I make everything the same, not talking radically different but as exact as I can down to surface finishes, base diameter on the reamers, throating, brass, matching everything I possibly can BUT have different shape and I see 100+ fps difference at the same case head measurements how would YOU interpret that? The only thing I can do is think there is something in design that changes how the powder lights and burns. </p><p></p><p>There are guys who are shooting sub inch groups at 1000 yards more and more regular, 2 inchers are common they did not reach that point by managing large things but it's in the minutia that many just don't believe or care is there. These guys are applying what they know to farther ranges and learning a whole other set of lessons and for some the continual learning process is the fun part, it's interesting to watch!!</p></blockquote><p></p>
[QUOTE="bigngreen, post: 1914808, member: 13632"] We all are looking for different things down to how a case even looks sometimes, some like to shoot small, some like to launch missiles some just like volume shooting, to get our panties wadded up over this stuff is kinda like burning you own house down because something made you mad!! There are things we can manipulate in case design, when we chamber and finish and how we load separating out those things is difficult at best, one thing I can't control without major over haul is the case heads response to pressure, there is some ways to work with it in some smaller cartridges but it's much harder the bigger we go. When I make everything the same, not talking radically different but as exact as I can down to surface finishes, base diameter on the reamers, throating, brass, matching everything I possibly can BUT have different shape and I see 100+ fps difference at the same case head measurements how would YOU interpret that? The only thing I can do is think there is something in design that changes how the powder lights and burns. There are guys who are shooting sub inch groups at 1000 yards more and more regular, 2 inchers are common they did not reach that point by managing large things but it's in the minutia that many just don't believe or care is there. These guys are applying what they know to farther ranges and learning a whole other set of lessons and for some the continual learning process is the fun part, it's interesting to watch!! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Understanding cartridge efficiency
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