Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
22-250 twist rate
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="A_Gamehog" data-source="post: 653541" data-attributes="member: 23596"><p>L= LENGTH OF BULLET IN INCHES</p><p>D- BULLET DIAMETER</p><p>T=RATE OF TWIST</p><p>sambo {QUOTE}</p><p> </p><p>The orig. poster had a flawed formula in that it had no input for speed.</p><p> </p><p>The 1-12 twist 22-250 will shoot the 69's if the elevation and speed are high.</p><p> </p><p>But a slow speed .223 with a 1-12 won't shoot anything accurately 60 grains or higher, some 1-12's won't shoot the long 55 V-max. </p><p> </p><p> </p><p>in a 223 only. I own each twist and speak from experience, not formulas.</p><p>1-8 twist shoots 50-80's best is a 75 out to 600 yards.</p><p>1-9 twist shoots 34-75's best is a 69 out to 600 yards.</p><p>1-10 twist shoots 34-69's best is a 69 out to 600 yards.</p><p>1-12 twist shoots 30-55's best is a 55 out to 400 yards.</p></blockquote><p></p>
[QUOTE="A_Gamehog, post: 653541, member: 23596"] L= LENGTH OF BULLET IN INCHES D- BULLET DIAMETER T=RATE OF TWIST sambo {QUOTE} The orig. poster had a flawed formula in that it had no input for speed. The 1-12 twist 22-250 will shoot the 69's if the elevation and speed are high. But a slow speed .223 with a 1-12 won't shoot anything accurately 60 grains or higher, some 1-12's won't shoot the long 55 V-max. in a 223 only. I own each twist and speak from experience, not formulas. 1-8 twist shoots 50-80's best is a 75 out to 600 yards. 1-9 twist shoots 34-75's best is a 69 out to 600 yards. 1-10 twist shoots 34-69's best is a 69 out to 600 yards. 1-12 twist shoots 30-55's best is a 55 out to 400 yards. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
22-250 twist rate
Top