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Long Range Hunting & Shooting
chromoly v. stainless
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<blockquote data-quote="James Jones" data-source="post: 188570" data-attributes="member: 8843"><p>Stainless expands and contracts more than CM does and I think that Kreigers line of thought is that if you have a good bore thats relitvly tight and the bore shrinks .001"-.002" you may run into pressure troubles if your running a crazy hot load. This is the reason that they were working with series 410 SS for a while as it has a bit more CM in it that 416 so it a had little bit lower expansion/contraction ratio but that has since been abandoned.</p><p>I have made some interferance fit parts (pump shaft and sleeves) that were as much as .006" interferance fit , the female part (440 SS sleeve) was baked to 300 deg and the male part (316 SS shaft) was frozen to about -30 deg because at 0 deg it haden't shrunk enought ot fit together.</p><p> </p><p>I highly doubt that anybody will be hunting in climates cold enough to shrink a barrel enough to cause any trouble if shooting sane loads.</p></blockquote><p></p>
[QUOTE="James Jones, post: 188570, member: 8843"] Stainless expands and contracts more than CM does and I think that Kreigers line of thought is that if you have a good bore thats relitvly tight and the bore shrinks .001"-.002" you may run into pressure troubles if your running a crazy hot load. This is the reason that they were working with series 410 SS for a while as it has a bit more CM in it that 416 so it a had little bit lower expansion/contraction ratio but that has since been abandoned. I have made some interferance fit parts (pump shaft and sleeves) that were as much as .006" interferance fit , the female part (440 SS sleeve) was baked to 300 deg and the male part (316 SS shaft) was frozen to about -30 deg because at 0 deg it haden't shrunk enought ot fit together. I highly doubt that anybody will be hunting in climates cold enough to shrink a barrel enough to cause any trouble if shooting sane loads. [/QUOTE]
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chromoly v. stainless
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