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
25-06ai
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="orch" data-source="post: 1797566" data-attributes="member: 35688"><p>I'm no chemist so I'm not sure on burn rates... not even sure what tests they do on powders to measure their burn rates... it would seem that rl25 is slower than rl26 based on how the charge rates shake out in the loading data...however I've also heard guys say rl26 is more "energy dense" not sure how this relates to burning rate or if it has relation to burn rates... I just chalk it up to rl26 being magic pixie dust ... </p><p></p><p>When comparing H1000 to Retumbo, h1000 is faster on the burn charts, I've heard that they are actually the same powder except Retumbo has a retardant (graphite maybe?) added to it to slow down the burn rate.... so grain for grain they should have the same energy density... if there are any chemists that can correct me or enlighten on burn rates/energy density science that'd be cool.</p><p></p><p>Anyways back to the 2506 and the Speer 120's if you are looking for max speed I'm thinking rl26 is where I'd start. I use lapua 3006 brass in my 2506ai because I found it to be a bit tougher than any of the factory 2506 brass I had access to... so you could maybe squeeze a bit more speed out of speed out of your load by pushing max pressure without trashing your brass as quick...</p><p></p><p>Orch</p></blockquote><p></p>
[QUOTE="orch, post: 1797566, member: 35688"] I’m no chemist so I’m not sure on burn rates... not even sure what tests they do on powders to measure their burn rates... it would seem that rl25 is slower than rl26 based on how the charge rates shake out in the loading data...however I’ve also heard guys say rl26 is more “energy dense” not sure how this relates to burning rate or if it has relation to burn rates... I just chalk it up to rl26 being magic pixie dust ... When comparing H1000 to Retumbo, h1000 is faster on the burn charts, I’ve heard that they are actually the same powder except Retumbo has a retardant (graphite maybe?) added to it to slow down the burn rate.... so grain for grain they should have the same energy density... if there are any chemists that can correct me or enlighten on burn rates/energy density science that’d be cool. Anyways back to the 2506 and the Speer 120’s if you are looking for max speed I’m thinking rl26 is where I’d start. I use lapua 3006 brass in my 2506ai because I found it to be a bit tougher than any of the factory 2506 brass I had access to... so you could maybe squeeze a bit more speed out of speed out of your load by pushing max pressure without trashing your brass as quick... Orch [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
25-06ai
Top