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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Anything wrong with tight headspace?
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<blockquote data-quote="25WSM" data-source="post: 1777902" data-attributes="member: 38048"><p>Now on to my point on work hardening. You get about the same Amount of work hardening in a cycle of brass either way. I will explain. Full length sizing will set you back a few thou. Some like .001 and some .003 these are the 2 most common numbers thrown around. On annealed brass this is nothing but it's there and has never ruined any of my brass. Now onto the neck sized only work hardening. Most neck size guys think there is no work hardening happening at all. I mean if you don't crush the case it didn't get worked And since it fits the chamber already it can't expand any further to harden any more either right? Nope. That neck sized brass gets work hardened just as much as the full length one. Here is why. When the firing pin hits the primer the force of that hit collapsed your shoulder about .007 to.010 before it fired. That .007 to .010 is far more than the 0 you left it at. And far more than the .003 I leave mine at. So now you see that even if you don't do the crushing it still gets crushed and worked. Want proof. Put a primer in a piece of your neck sized brass and measure your shoulder to base dimension. Now fire that primer and take the brass out and measure it. Yup it crushed didn't it. They all do. How far is a matter of how thin the brass is. How annealed it is or hardened. So now we see that no, neck sized brass doesn't work harden less. So we've almost gotten full circle why you should just full length size. I bet someone is going to say neck sizing is more accurate.</p><p>Shep</p></blockquote><p></p>
[QUOTE="25WSM, post: 1777902, member: 38048"] Now on to my point on work hardening. You get about the same Amount of work hardening in a cycle of brass either way. I will explain. Full length sizing will set you back a few thou. Some like .001 and some .003 these are the 2 most common numbers thrown around. On annealed brass this is nothing but it's there and has never ruined any of my brass. Now onto the neck sized only work hardening. Most neck size guys think there is no work hardening happening at all. I mean if you don't crush the case it didn't get worked And since it fits the chamber already it can't expand any further to harden any more either right? Nope. That neck sized brass gets work hardened just as much as the full length one. Here is why. When the firing pin hits the primer the force of that hit collapsed your shoulder about .007 to.010 before it fired. That .007 to .010 is far more than the 0 you left it at. And far more than the .003 I leave mine at. So now you see that even if you don't do the crushing it still gets crushed and worked. Want proof. Put a primer in a piece of your neck sized brass and measure your shoulder to base dimension. Now fire that primer and take the brass out and measure it. Yup it crushed didn't it. They all do. How far is a matter of how thin the brass is. How annealed it is or hardened. So now we see that no, neck sized brass doesn't work harden less. So we've almost gotten full circle why you should just full length size. I bet someone is going to say neck sizing is more accurate. Shep [/QUOTE]
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Anything wrong with tight headspace?
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