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Rifles, Reloading, Optics, Equipment
Equipment Discussions
Aluminum Chassis and Temp Changes
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<blockquote data-quote="ShtrRdy" data-source="post: 1477128" data-attributes="member: 40852"><p>I'm not a materials or mechanical engineer but I was looking at the thermal expansion coefficients for aluminum and steel. Aluminum has about twice the expansion than steel. But the numbers are small. Like a 10 millionths of an inch per degree per inch of material for steel. A Rem 700 action has a diameter of about 1.35". For a 50 degree span of temperature the diameter would increase by about 0.0006". ( if I did the math right).</p><p></p><p>I have two legacy AICS and I haven't noticed a change in impact over a 70 degree span.</p></blockquote><p></p>
[QUOTE="ShtrRdy, post: 1477128, member: 40852"] I'm not a materials or mechanical engineer but I was looking at the thermal expansion coefficients for aluminum and steel. Aluminum has about twice the expansion than steel. But the numbers are small. Like a 10 millionths of an inch per degree per inch of material for steel. A Rem 700 action has a diameter of about 1.35". For a 50 degree span of temperature the diameter would increase by about 0.0006". ( if I did the math right). I have two legacy AICS and I haven't noticed a change in impact over a 70 degree span. [/QUOTE]
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