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October 13, 2008, 10:12 PM | #1 |
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Join Date: January 12, 2008
Posts: 102
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Just fired 7.62x54r cases, cool to the touch, why?
I have been loading 7.62x54r with 43g of Varget for use in my M44. The light load is quite accurate and has reduced recoil plus my brass will be good for many loadings. I have noticed that just fired cases are completely cool to the touch when ejected unlike every other caliber I have ever shot. How is this possible?
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October 14, 2008, 09:46 AM | #2 |
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Join Date: February 19, 2006
Posts: 452
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I noticed the same thing i thought maybe it was due to a low powder charge or a unique type of powder
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October 14, 2008, 10:00 AM | #3 |
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Join Date: January 12, 2008
Posts: 102
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You would think that with 43g of Varget that some of the heat generated would be retained in the brass. I am guessing that the heat is immediately transferred into the steel of the chamber.
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October 14, 2008, 10:10 AM | #4 | |
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Join Date: April 8, 2007
Location: Virginia
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Quote:
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October 14, 2008, 10:27 AM | #5 |
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Join Date: May 25, 1999
Location: Too close to Houston
Posts: 4,196
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Are the other rifles you shoot autoloaders?
The brass is always much cooler when taken from a bolt action rifle. The chamber is a very good heat sink and the heat dissapates from the brass quickly. Catch a piece of .22lr brass as it flies from an autoloader and compare it's temperature to that of a piece of brass ejected from a rimfire bolt action rifle and you'll see what I mean.
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October 14, 2008, 10:37 AM | #6 |
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Join Date: January 12, 2008
Posts: 102
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Thanks for that explanation. My Mosins are the only bolt guns that I own so I have nothing to compare to.
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