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
New Cooper 6.5x284
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="Greyfox" data-source="post: 736321" data-attributes="member: 10291"><p>I have been a 6.5-284 shooter for several years, my current rifles, one a Cooper 520/26", the other a Savage LRH/24". It is very likely that you can boost your velocity using 140 VLD's to 2900-3000 FPS, getting the same accuracy you have shown or better using a 24" barrel, no high pressure, no blast effects. The chonographed velocity and drop data between my two rifles is 25 FPS, the 26" Cooper the higher. Both rifles shoot .25-.5MOA 5 shot groups. I have found that fire formed brass has more influence in improving ES than absolue accuracy with Lapua or Nosler brass. Seating depth of the VLD will have a greater influence. Both my rifles are .075" off the lands. Be are to work up carefully in .5 gr increments but you should get close to 53 gr. of H4831 SC, 2920-2950 FPS. I have found that Retumbo can produce better temperature stability, and higher velocities(2950-3000FPS) with equal accuracy. I use 59 gr in both my rifles but start at 57 gr and work up in .5 gr increments. </p><p>Congratulations, you have a very capable long range rig. Don't be too cautious about wringing out it's true potential. IMHO.</p></blockquote><p></p>
[QUOTE="Greyfox, post: 736321, member: 10291"] I have been a 6.5-284 shooter for several years, my current rifles, one a Cooper 520/26", the other a Savage LRH/24". It is very likely that you can boost your velocity using 140 VLD's to 2900-3000 FPS, getting the same accuracy you have shown or better using a 24" barrel, no high pressure, no blast effects. The chonographed velocity and drop data between my two rifles is 25 FPS, the 26" Cooper the higher. Both rifles shoot .25-.5MOA 5 shot groups. I have found that fire formed brass has more influence in improving ES than absolue accuracy with Lapua or Nosler brass. Seating depth of the VLD will have a greater influence. Both my rifles are .075" off the lands. Be are to work up carefully in .5 gr increments but you should get close to 53 gr. of H4831 SC, 2920-2950 FPS. I have found that Retumbo can produce better temperature stability, and higher velocities(2950-3000FPS) with equal accuracy. I use 59 gr in both my rifles but start at 57 gr and work up in .5 gr increments. Congratulations, you have a very capable long range rig. Don't be too cautious about wringing out it's true potential. IMHO. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
New Cooper 6.5x284
Top