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
Reloading
7mm STW twist and bullet ??
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="dirtball" data-source="post: 306306" data-attributes="member: 7344"><p>Did a quick calculation</p><p></p><p>7X57 2450 fps with 9 twist = 196,000 rpm</p><p>7MM Rem Mag 3000 fps 9 twist = 240,000 rpm</p><p>7mm STW 3100 fps 10 twist = 223,000 rpm</p><p></p><p>Not sure what velocity Berger bases their twist recomendations on, but I would guess it is something less than the velocity you will get from your 7MM STW.</p><p></p><p> Should be OK , worth a try.</p><p></p><p>Dave</p></blockquote><p></p>
[QUOTE="dirtball, post: 306306, member: 7344"] Did a quick calculation 7X57 2450 fps with 9 twist = 196,000 rpm 7MM Rem Mag 3000 fps 9 twist = 240,000 rpm 7mm STW 3100 fps 10 twist = 223,000 rpm Not sure what velocity Berger bases their twist recomendations on, but I would guess it is something less than the velocity you will get from your 7MM STW. Should be OK , worth a try. Dave [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
7mm STW twist and bullet ??
Top