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
6.5-7 PRC vs 6.5-300 PRC
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="Wallie" data-source="post: 3049911" data-attributes="member: 107256"><p>I have some experience testing barrel lengths in a 7/300WSM. Started with a 26" barrel, RL23 and a 180vld at 1 grain under pressure signs load. Cut 1" off and measured velocity with the "standard" load all the way down to 18. </p><p>I found fairly linear loss per inch right down to 21", then it started dropping exponentially. </p><p>This one experiment has suggested to me that for any given combination of components there will be an obvious point of diminishing returns. </p><p>Also curious, if you take the time to measure your inputs carefully and tune your burn rate to match your recorded velocities, Quickload matched almost exactly the real world results I got with that experiment. </p><p></p><p>I think using Quickload is a wonderful idea in your case… model the various combinations you are considering. If your inputs are good you should get fairly close. </p><p></p><p></p><p>…other than you can actually, you know… find some to buy. <img class="smilie smilie--emoji" loading="lazy" alt="😉" title="Winking face :wink:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f609.png" data-shortname=":wink:" /></p></blockquote><p></p>
[QUOTE="Wallie, post: 3049911, member: 107256"] I have some experience testing barrel lengths in a 7/300WSM. Started with a 26” barrel, RL23 and a 180vld at 1 grain under pressure signs load. Cut 1” off and measured velocity with the “standard” load all the way down to 18. I found fairly linear loss per inch right down to 21”, then it started dropping exponentially. This one experiment has suggested to me that for any given combination of components there will be an obvious point of diminishing returns. Also curious, if you take the time to measure your inputs carefully and tune your burn rate to match your recorded velocities, Quickload matched almost exactly the real world results I got with that experiment. I think using Quickload is a wonderful idea in your case… model the various combinations you are considering. If your inputs are good you should get fairly close. …other than you can actually, you know… find some to buy. 😉 [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5-7 PRC vs 6.5-300 PRC
Top