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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel damage????
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<blockquote data-quote="Kevin Thomas" data-source="post: 641623" data-attributes="member: 15748"><p>No damage at all. Many years back, I shot a 7mm TCU (223 Rem necked up to 7mm) for Silhouette pistol competition. Standard method of fireforming cases was to simply chamber a 223 Rem cartridge, pull the trigger, and extract a perfectly formed 7mm TCU case. Amazed me to no end, but it fireforms perfectly, no problem for the gun or cases. Incidentally, this was one of the best ways <u>not</u> to lose cases in forming TCU brass. Expanding them with a mandrel would split a very high percentage of them unless you annealed beforehand.</p><p> </p><p>Don't worry, he didn't hurt a thing.</p></blockquote><p></p>
[QUOTE="Kevin Thomas, post: 641623, member: 15748"] No damage at all. Many years back, I shot a 7mm TCU (223 Rem necked up to 7mm) for Silhouette pistol competition. Standard method of fireforming cases was to simply chamber a 223 Rem cartridge, pull the trigger, and extract a perfectly formed 7mm TCU case. Amazed me to no end, but it fireforms perfectly, no problem for the gun or cases. Incidentally, this was one of the best ways [U]not[/U] to lose cases in forming TCU brass. Expanding them with a mandrel would split a very high percentage of them unless you annealed beforehand. Don't worry, he didn't hurt a thing. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel damage????
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