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
Temp related velocity loss
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="royinidaho" data-source="post: 90854" data-attributes="member: 2011"><p>Here's one for ya regarding temp sensitivity and RL 22</p><p></p><p>Set my 338 Win loads out on the wood pile over night. Put the rifle in the garage. Put the rifle by the wood pile early this morning to get it down to the same temp as the loads.</p><p></p><p>By the time I got setup to shoot the temp had risen to nothing, that would be Zero degrees F. Slight wind from the north nearly parallel to line of sight.</p><p></p><p>These loads were developed this summer and fall. 75 gr RL-22, Sierra 250 game kings and Wildcat 252s. Fed 215 primer.</p><p></p><p>Average MV for these loads (a bunch of them over the chrony) is 2795fps.</p><p></p><p>With everthing equalized at ~ 0 deg F what do you think my velocity was?</p><p></p><p>Scroll down.......................</p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p>WRONG?</p><p></p><p>Scroll down more ......................</p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p>2900 +/- 10.</p><p></p><p></p><p>I'm fixin' to go to counseling. /ubbthreads/images/graemlins/confused.gif /ubbthreads/images/graemlins/confused.gif /ubbthreads/images/graemlins/confused.gif</p><p></p><p>Chrono'd the 222 - velocity was spot on.</p><p></p><p>Who's sig line says "because anyother sport would be so confusing?" /ubbthreads/images/graemlins/crazy.gif /ubbthreads/images/graemlins/crazy.gif /ubbthreads/images/graemlins/crazy.gif</p><p></p><p>Warmed up a round in my shirt pocket then fired a rapid fire string to heat up the barrel. Then fired the warmed round. Velocity went down. /ubbthreads/images/graemlins/confused.gif /ubbthreads/images/graemlins/confused.gif /ubbthreads/images/graemlins/confused.gif</p><p></p><p>Also, I feel strongly that the pressure was lower also. More confusion????</p></blockquote><p></p>
[QUOTE="royinidaho, post: 90854, member: 2011"] Here's one for ya regarding temp sensitivity and RL 22 Set my 338 Win loads out on the wood pile over night. Put the rifle in the garage. Put the rifle by the wood pile early this morning to get it down to the same temp as the loads. By the time I got setup to shoot the temp had risen to nothing, that would be Zero degrees F. Slight wind from the north nearly parallel to line of sight. These loads were developed this summer and fall. 75 gr RL-22, Sierra 250 game kings and Wildcat 252s. Fed 215 primer. Average MV for these loads (a bunch of them over the chrony) is 2795fps. With everthing equalized at ~ 0 deg F what do you think my velocity was? Scroll down....................... WRONG? Scroll down more ...................... 2900 +/- 10. I'm fixin' to go to counseling. [img]/ubbthreads/images/graemlins/confused.gif[/img] [img]/ubbthreads/images/graemlins/confused.gif[/img] [img]/ubbthreads/images/graemlins/confused.gif[/img] Chrono'd the 222 - velocity was spot on. Who's sig line says "because anyother sport would be so confusing?" [img]/ubbthreads/images/graemlins/crazy.gif[/img] [img]/ubbthreads/images/graemlins/crazy.gif[/img] [img]/ubbthreads/images/graemlins/crazy.gif[/img] Warmed up a round in my shirt pocket then fired a rapid fire string to heat up the barrel. Then fired the warmed round. Velocity went down. [img]/ubbthreads/images/graemlins/confused.gif[/img] [img]/ubbthreads/images/graemlins/confused.gif[/img] [img]/ubbthreads/images/graemlins/confused.gif[/img] Also, I feel strongly that the pressure was lower also. More confusion???? [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Temp related velocity loss
Top