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Rifles, Reloading, Optics, Equipment
Reloading
Too early to do load developement?
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<blockquote data-quote="Arkansasdad" data-source="post: 1908649" data-attributes="member: 76766"><p>What???? I think your speaking of freebore. Freebore is the distance the bullet travels before it contacts the lands, neck tension is the amount of pressure used to hold the bullet in the neck of the cartridge brass. I have never heard of forming brass to ten- ten thousands of an inch. Don't even know how I would measure this.</p><p> How does using a full length die not change the overall dimensions back to the dimensions of the die and away from the dimensions of the chamber the brass was shot in? This is what fire-forming is, the forming of the brass to the chamber it has been shot in. Brass will "crawl" every time it is shot, how much depends on chamber configuration, how hot the load the primer, and etc. but it will always flow.</p><p> In my experience the brass crawls less in calibers that have sharp and long shoulder angles such as the newer bench calibers but it always crawls forward. This is why brass wears out, also this is why the brass has to be trimmed every so often depending on how much crawl or flow, as my younger brothers tend to call it, it is experiencing. As this is happening the brass is getting thinner through the body of the cartridge brass and eventually fails, this is where the brass comes from that elongates the neck.</p><p> I think fire formed brass is as good as it will ever be after the it is fire formed the first time, after tens of thousands of rounds I have shot I notice no distinguishable difference in the accuracy as far as the brass goes until the brass gets to the point it fails. Hope this helps happy shooting.</p></blockquote><p></p>
[QUOTE="Arkansasdad, post: 1908649, member: 76766"] What???? I think your speaking of freebore. Freebore is the distance the bullet travels before it contacts the lands, neck tension is the amount of pressure used to hold the bullet in the neck of the cartridge brass. I have never heard of forming brass to ten- ten thousands of an inch. Don't even know how I would measure this. How does using a full length die not change the overall dimensions back to the dimensions of the die and away from the dimensions of the chamber the brass was shot in? This is what fire-forming is, the forming of the brass to the chamber it has been shot in. Brass will "crawl" every time it is shot, how much depends on chamber configuration, how hot the load the primer, and etc. but it will always flow. In my experience the brass crawls less in calibers that have sharp and long shoulder angles such as the newer bench calibers but it always crawls forward. This is why brass wears out, also this is why the brass has to be trimmed every so often depending on how much crawl or flow, as my younger brothers tend to call it, it is experiencing. As this is happening the brass is getting thinner through the body of the cartridge brass and eventually fails, this is where the brass comes from that elongates the neck. I think fire formed brass is as good as it will ever be after the it is fire formed the first time, after tens of thousands of rounds I have shot I notice no distinguishable difference in the accuracy as far as the brass goes until the brass gets to the point it fails. Hope this helps happy shooting. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Too early to do load developement?
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