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Rifles, Reloading, Optics, Equipment
Gunsmithing
Bedding a howa mini
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<blockquote data-quote="codyadams" data-source="post: 1640244" data-attributes="member: 87243"><p>The steel putty has less shrinkage and finishes harder. It is not a huge difference, but it is a difference. The weight difference is slightly over half a gram per cubic cm. However if someone was very picky about a light build they could look at the titanium or aluminum. While it may not match exactly, steel putty will match a steel receiver for thermal expansion better than aluminum would, aluminum expands and contracts much more than steel does, the coefficient of thermal expansion for aluminum is 2.73, where as steel is 1.63 (and titanium is 1.0). I have stocks with bedding 10 years old used for hunting and have been exposed to the elements, and I personally have never seen any rust. Not saying it can't happen, I just haven't seen it.</p><p></p><p>Not saying that any of these would make a huge overall difference in a bedding job, it's just why nearly all custom rifle builders use Devcon steel putty vs. other epoxies.</p></blockquote><p></p>
[QUOTE="codyadams, post: 1640244, member: 87243"] The steel putty has less shrinkage and finishes harder. It is not a huge difference, but it is a difference. The weight difference is slightly over half a gram per cubic cm. However if someone was very picky about a light build they could look at the titanium or aluminum. While it may not match exactly, steel putty will match a steel receiver for thermal expansion better than aluminum would, aluminum expands and contracts much more than steel does, the coefficient of thermal expansion for aluminum is 2.73, where as steel is 1.63 (and titanium is 1.0). I have stocks with bedding 10 years old used for hunting and have been exposed to the elements, and I personally have never seen any rust. Not saying it can't happen, I just haven't seen it. Not saying that any of these would make a huge overall difference in a bedding job, it's just why nearly all custom rifle builders use Devcon steel putty vs. other epoxies. [/QUOTE]
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Bedding a howa mini
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