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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Does a gunsmith know when a barrel will shoot?
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<blockquote data-quote="ntsqd" data-source="post: 3070090" data-attributes="member: 93138"><p>When I worked at a racing engines machine shop the owner would occasionally remark "This one is going to make power". They all made power, but some made more/better power than others. They were all within the shop's tight set of specs, but some just had the planets aligned when they were machined. I asked him how he could tell and he handed me the barring-over tool. "Spin that one"; I did. "Spin this one": I did. It was obvious. 'That' one was easier to spin over than 'This' one. Those that were better had micro-nuances, some beyond our control, that allowed them to spin over with less internal friction than the engine next to it machined at the same time, by the same guys. Of course they want all of their engines to be like 'That' one, so considerable time and effort went into analyzing how it was just enough different and how to make them all like that.</p><p></p><p>I have seen nothing in firearms that makes me think that those similar sets of copacetic tolerances don't exist in them as well. Some will shoot better than others, and it isn't the parts chosen or the money spent. It is that this particular set of parts work extremely well together.</p></blockquote><p></p>
[QUOTE="ntsqd, post: 3070090, member: 93138"] When I worked at a racing engines machine shop the owner would occasionally remark "This one is going to make power". They all made power, but some made more/better power than others. They were all within the shop's tight set of specs, but some just had the planets aligned when they were machined. I asked him how he could tell and he handed me the barring-over tool. "Spin that one"; I did. "Spin this one": I did. It was obvious. 'That' one was easier to spin over than 'This' one. Those that were better had micro-nuances, some beyond our control, that allowed them to spin over with less internal friction than the engine next to it machined at the same time, by the same guys. Of course they want all of their engines to be like 'That' one, so considerable time and effort went into analyzing how it was just enough different and how to make them all like that. I have seen nothing in firearms that makes me think that those similar sets of copacetic tolerances don't exist in them as well. Some will shoot better than others, and it isn't the parts chosen or the money spent. It is that this particular set of parts work extremely well together. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Does a gunsmith know when a barrel will shoot?
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