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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Cartridge selection process.??
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<blockquote data-quote="Guest" data-source="post: 25804"><p>BH,</p><p></p><p>Some gunsmiths and die makers machine their sizing dies with the chamber reamer, they do this because in their process they know the die will be heat-treated. The heat treating process for some steels allows the die to change dimensions, this gives the sizing necessary. Other smiths will not harden their dies, but have them titanium carbo nitrided, this makes the surface of the die extremely slippery, think about 90 Rockwell on the C scale. This process also causes the die to grow dimensionally.</p><p></p><p>Personally, I like the Newlon blank with a neck bushing, cut by my resize reamer. I have found that by designing the resize reamer .001" smaller near the case head, and .002" smaller at the body shoulder junction, sizing is ideal and works the brass very little, promoting long case life. This also saves wear and tear on my chambering reamer.</p></blockquote><p></p>
[QUOTE="Guest, post: 25804"] BH, Some gunsmiths and die makers machine their sizing dies with the chamber reamer, they do this because in their process they know the die will be heat-treated. The heat treating process for some steels allows the die to change dimensions, this gives the sizing necessary. Other smiths will not harden their dies, but have them titanium carbo nitrided, this makes the surface of the die extremely slippery, think about 90 Rockwell on the C scale. This process also causes the die to grow dimensionally. Personally, I like the Newlon blank with a neck bushing, cut by my resize reamer. I have found that by designing the resize reamer .001" smaller near the case head, and .002" smaller at the body shoulder junction, sizing is ideal and works the brass very little, promoting long case life. This also saves wear and tear on my chambering reamer. [/QUOTE]
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Cartridge selection process.??
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