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Rifles, Reloading, Optics, Equipment
Reloading
Neck diameter clearance on tight neck chamber
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<blockquote data-quote="Mikecr" data-source="post: 1837589" data-attributes="member: 1521"><p>If I have an opinion it's excess this that & another is just that, and neither necessary nor 'good'.</p><p>Also, if I believed that tighter clearances are harder to manage, I wouldn't bring contrast to that.</p><p>But in reality, tighter is easier.</p><p></p><p>Keep in mind that the tighter you go, the straighter your ammo is made, so the easier it is to manage tight clearances.</p><p>The flip side holds just as true:</p><p>The looser your clearance, the tougher it is to make straight ammo, requiring looser clearances.</p><p>Closing the loop.</p><p></p><p>It is desirable to make straight ammo, not for safety, but so that you will not cause chambered tensions that affect results. With this, competitors have evolved to higher clearances, but not because they shoot better. It's really because they shoot with <em>less problems</em>, having more clearances -for their crooked ammo.</p><p>It's really no more than any <em>issue</em> leading to a bigger loop.</p><p></p><p>With a current gun I manage 0.0005" total neck clearance (0.00025" per side) with turned necks/clean chamber.</p><p>I've experimented way way tighter for testing, with no issue to load performance whatsoever. That's how I KNOW (not just believe, not opinion) that high clearances are not a functional requirement for small arms internal ballistics.</p><p>And logically, it makes no difference what cartridge we're talking about.</p><p>I developed loads with this, and I'm confident the gun shoots as well as anyone would hope for the cartridge.</p><p>In fact the entire chamber is fitted, and you know what's easier about it?</p><p>-No resizing needed</p><p>-No trimming needed</p><p>-No annealing needed</p><p>-Matched H20 capacities holding as such</p><p>-Tight as new primer pockets with over 50 reloads ->onward</p></blockquote><p></p>
[QUOTE="Mikecr, post: 1837589, member: 1521"] If I have an opinion it's excess this that & another is just that, and neither necessary nor 'good'. Also, if I believed that tighter clearances are harder to manage, I wouldn't bring contrast to that. But in reality, tighter is easier. Keep in mind that the tighter you go, the straighter your ammo is made, so the easier it is to manage tight clearances. The flip side holds just as true: The looser your clearance, the tougher it is to make straight ammo, requiring looser clearances. Closing the loop. It is desirable to make straight ammo, not for safety, but so that you will not cause chambered tensions that affect results. With this, competitors have evolved to higher clearances, but not because they shoot better. It's really because they shoot with [I]less problems[/I], having more clearances -for their crooked ammo. It's really no more than any [I]issue[/I] leading to a bigger loop. With a current gun I manage 0.0005" total neck clearance (0.00025" per side) with turned necks/clean chamber. I've experimented way way tighter for testing, with no issue to load performance whatsoever. That's how I KNOW (not just believe, not opinion) that high clearances are not a functional requirement for small arms internal ballistics. And logically, it makes no difference what cartridge we're talking about. I developed loads with this, and I'm confident the gun shoots as well as anyone would hope for the cartridge. In fact the entire chamber is fitted, and you know what's easier about it? -No resizing needed -No trimming needed -No annealing needed -Matched H20 capacities holding as such -Tight as new primer pockets with over 50 reloads ->onward [/QUOTE]
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Reloading
Neck diameter clearance on tight neck chamber
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