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Rifle assembly
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<blockquote data-quote="buzzgun" data-source="post: 148285" data-attributes="member: 6372"><p>Fifty (and anybody else that knows the answers)</p><p></p><p>I'm trying to learn something here......</p><p></p><p>Can you explain why the precise threading you described above makes a big difference in accuracy???? </p><p></p><p>I guess I'm thinking like Ross......if the barrel/receiver faces are square and screwed together tightly, I don't understand why such precision threads would make any difference??? </p><p></p><p>Does the barrel shank have to be threaded for the combination to be accurate??? What if the inside of the front of the receiver wasn't threaded at all, and the barrel shank had no threads either......could you machine each so that barrel to receiver assembly was a press fit, held in place by pins, and still be accurate??? Wouldn't that remove ALL clearance issues if you have no clearance??? </p><p></p><p>What if we machined the barrel shank and the receiver so that the receiver had to be heated slightly to expand and allow the barrel to be press fitted??? I'm thinking about how connecting rods in an engine are sometimes heated in a fixture until they expand enough that the piston pin can be installed.....why couldn't a barrel be installed the same way and remove ALL clearance issues??? </p><p></p><p>Educate me please! /ubbthreads/images/graemlins/grin.gif</p></blockquote><p></p>
[QUOTE="buzzgun, post: 148285, member: 6372"] Fifty (and anybody else that knows the answers) I'm trying to learn something here...... Can you explain why the precise threading you described above makes a big difference in accuracy???? I guess I'm thinking like Ross......if the barrel/receiver faces are square and screwed together tightly, I don't understand why such precision threads would make any difference??? Does the barrel shank have to be threaded for the combination to be accurate??? What if the inside of the front of the receiver wasn't threaded at all, and the barrel shank had no threads either......could you machine each so that barrel to receiver assembly was a press fit, held in place by pins, and still be accurate??? Wouldn't that remove ALL clearance issues if you have no clearance??? What if we machined the barrel shank and the receiver so that the receiver had to be heated slightly to expand and allow the barrel to be press fitted??? I'm thinking about how connecting rods in an engine are sometimes heated in a fixture until they expand enough that the piston pin can be installed.....why couldn't a barrel be installed the same way and remove ALL clearance issues??? Educate me please! [img]/ubbthreads/images/graemlins/grin.gif[/img] [/QUOTE]
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