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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.22-250
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<blockquote data-quote="CatShooter" data-source="post: 132508" data-attributes="member: 7"><p>[ QUOTE ]</p><p></p><p>Hi</p><p>i am looking to load the .22-250 with some Hornady 69HPBT in my Styer SGG with 1-14 twist do you think it will stabilise with this twist rate?I will use H380 has anybody got a starting poad to suit the above bullet/powder combo?</p><p></p><p>Chris </p><p></p><p>[/ QUOTE ]</p><p></p><p>This bullet need a 9" twist to stabilize.</p><p></p><p>Here is the notes from the MidwayUSA site -</p><p></p><p><strong>"Sectional Density: .196</strong></p><p><strong>Ballistic Coefficient:</strong></p><p><strong># .317 under 2200 fps</strong></p><p><strong># .301 above 2800 fps</strong></p><p><strong></strong></p><p><strong>Notes:</strong></p><p><strong># Designed for use in barrels with a twist rate of 1 in 7" to 1 in 10". Will not stabilize adequately in barrels with a slower twist rate."</strong></p></blockquote><p></p>
[QUOTE="CatShooter, post: 132508, member: 7"] [ QUOTE ] Hi i am looking to load the .22-250 with some Hornady 69HPBT in my Styer SGG with 1-14 twist do you think it will stabilise with this twist rate?I will use H380 has anybody got a starting poad to suit the above bullet/powder combo? Chris [/ QUOTE ] This bullet need a 9" twist to stabilize. Here is the notes from the MidwayUSA site - [b]"Sectional Density: .196 Ballistic Coefficient: # .317 under 2200 fps # .301 above 2800 fps Notes: # Designed for use in barrels with a twist rate of 1 in 7" to 1 in 10". Will not stabilize adequately in barrels with a slower twist rate."[/b] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.22-250
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