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Rifles, Reloading, Optics, Equipment
Equipment Discussions
223 WSSM experience in STEALTH 2
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<blockquote data-quote="riof16" data-source="post: 78520" data-attributes="member: 4535"><p>I am shooting a new STEALTH 2 in 223 WSSM. My intent: 200-500 yard prairie dog dispatcher. My first experiment - straight from the Hornady book:</p><p>40.4 Varget, 50gr V-Max, factory win brass, WLR primer, seated .010 back. Supposedly 3900, but chrono'd at 3770. The big problem is I am seeing high pressure, and BULLET DISINTEGRATION.</p><p>I suspect my #1 issue is the 10 twist barrel (versus 12/14 in other .22s).</p><p>Proposed [semi-amature] conclusion: This bullet will not handle this twist at this velocity.</p><p>Proposed solution: 60gr V-max, and still even slow it down a couple hundred.</p><p></p><p>Probable relating issue: The RCBS die is punching the neck I.D. to .220 (for the .224 bullet). Isn't that in itself giving me pressure issues due to an overtight seat?</p><p>How about my seating depth of .010? Is that creating pressure by being too close?</p><p></p><p>My big question: why did Winchester twist this hot-shooting .22 varmint-killer so fast?</p><p></p><p>Also, is there a rule-of-thumb formula for hitting the heart of the stabilization/accuracy envelope for a particular caliber/twist/barrel-length/velocity vs. bullet weight? (In other words, what is the best weight varmint bullet that will maximize my Stealth accuracy but not rip the bullet apart, and how fast to shoot it)</p><p></p><p><strong>Any words?</strong> </p><p></p><p>....learning this game is really fun.....</p></blockquote><p></p>
[QUOTE="riof16, post: 78520, member: 4535"] I am shooting a new STEALTH 2 in 223 WSSM. My intent: 200-500 yard prairie dog dispatcher. My first experiment - straight from the Hornady book: 40.4 Varget, 50gr V-Max, factory win brass, WLR primer, seated .010 back. Supposedly 3900, but chrono'd at 3770. The big problem is I am seeing high pressure, and BULLET DISINTEGRATION. I suspect my #1 issue is the 10 twist barrel (versus 12/14 in other .22s). Proposed [semi-amature] conclusion: This bullet will not handle this twist at this velocity. Proposed solution: 60gr V-max, and still even slow it down a couple hundred. Probable relating issue: The RCBS die is punching the neck I.D. to .220 (for the .224 bullet). Isn't that in itself giving me pressure issues due to an overtight seat? How about my seating depth of .010? Is that creating pressure by being too close? My big question: why did Winchester twist this hot-shooting .22 varmint-killer so fast? Also, is there a rule-of-thumb formula for hitting the heart of the stabilization/accuracy envelope for a particular caliber/twist/barrel-length/velocity vs. bullet weight? (In other words, what is the best weight varmint bullet that will maximize my Stealth accuracy but not rip the bullet apart, and how fast to shoot it) [b]Any words?[/b] ....learning this game is really fun..... [/QUOTE]
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223 WSSM experience in STEALTH 2
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