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
.280 Ackley and 150grn Swift Scirocco II
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="varmintH8R" data-source="post: 763131" data-attributes="member: 39801"><p>I think 3000fps is probably unrealistic with 160s. Most of the 7mm mag data I see for 160s is 2950 to 3000. Of course, "internet people" routinely experience velocities quite a bit over published data. Their 280 Ackleys are faster than 7mag, too. I love my 280AI but it flat out aint faster than a 7mag.</p><p></p><p>That being said, with a slower powder you might get a bit more speed out of that longer barrel. Worth trying - my personal preference is for heavier bullets.</p><p></p><p>I am no ballistics genius, and I'm betting this relationship is not typically linear. But, I thought it was interesting:</p><p></p><p>140 is 12.5% lighter than 160</p><p></p><p>2800 is 12.5% slower than 3200</p><p></p><p>Critters will be bummed either way, seeing the groups above!</p></blockquote><p></p>
[QUOTE="varmintH8R, post: 763131, member: 39801"] I think 3000fps is probably unrealistic with 160s. Most of the 7mm mag data I see for 160s is 2950 to 3000. Of course, "internet people" routinely experience velocities quite a bit over published data. Their 280 Ackleys are faster than 7mag, too. I love my 280AI but it flat out aint faster than a 7mag. That being said, with a slower powder you might get a bit more speed out of that longer barrel. Worth trying - my personal preference is for heavier bullets. I am no ballistics genius, and I'm betting this relationship is not typically linear. But, I thought it was interesting: 140 is 12.5% lighter than 160 2800 is 12.5% slower than 3200 Critters will be bummed either way, seeing the groups above! [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
.280 Ackley and 150grn Swift Scirocco II
Top