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Rifles, Reloading, Optics, Equipment
Reloading
Kirby Allen’s “no load development” load development method.
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<blockquote data-quote="Bart B" data-source="post: 698176" data-attributes="member: 5302"><p>I know what you're referring to; factory receivers and bolts are not perfect, zero-tolerance fit, alignment and squared up.</p><p></p><p>It's just that factory actions whose receiver and bolt faces are squared up with the barrel tenon threads and lugs lapped to full contact, even with sloppy bolt fit and slight misalignment of bore axis to receiver axis as well as the bolt axis to receiver axis alignment doesn't have to be perfect and exact to do as well as any custom one with all parts in perfect fit and alignment. As long as the bolt's closed the same way for every shot, sloppy factory actions so improved shoot just as accurate as the zero-tolerance custom ones. Their vibrations pattern have to be very repeatable else they would not shoot just as accurate as the high end custom actions popular in long range bench rest ones used today.</p><p></p><p>I continue to be amazed at the insistance of everything behind the barrel tenon shoulder be as perfect as possible for accuracy when only a few things are important. None of the expensive "perfect" and "zero tolerance" custom actions made these days have performed any better accuracy wise than Winchester 70 ones made decades ago that are trued up as mentioned earlier.</p></blockquote><p></p>
[QUOTE="Bart B, post: 698176, member: 5302"] I know what you're referring to; factory receivers and bolts are not perfect, zero-tolerance fit, alignment and squared up. It's just that factory actions whose receiver and bolt faces are squared up with the barrel tenon threads and lugs lapped to full contact, even with sloppy bolt fit and slight misalignment of bore axis to receiver axis as well as the bolt axis to receiver axis alignment doesn't have to be perfect and exact to do as well as any custom one with all parts in perfect fit and alignment. As long as the bolt's closed the same way for every shot, sloppy factory actions so improved shoot just as accurate as the zero-tolerance custom ones. Their vibrations pattern have to be very repeatable else they would not shoot just as accurate as the high end custom actions popular in long range bench rest ones used today. I continue to be amazed at the insistance of everything behind the barrel tenon shoulder be as perfect as possible for accuracy when only a few things are important. None of the expensive "perfect" and "zero tolerance" custom actions made these days have performed any better accuracy wise than Winchester 70 ones made decades ago that are trued up as mentioned earlier. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Kirby Allen’s “no load development” load development method.
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