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Temp related velocity loss

 
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  #8  
Old 12-07-2005, 07:02 AM
 
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Re: Temp related velocity loss

Hmmmmm....I'm wondering about the degree of misalignment of the bullets to the cases with all that ammo being kept in your pocket!!

Hmmmmm...someone needs to run some tests on this!! [img]/ubbthreads/images/graemlins/smirk.gif[/img] [img]/ubbthreads/images/graemlins/tongue.gif[/img] [img]/ubbthreads/images/graemlins/crazy.gif[/img]
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  #9  
Old 12-07-2005, 11:44 PM
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Re: Temp related velocity loss

Misalignment ehhh R? Soon as i meet her i'll let u know.
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  #10  
Old 12-09-2005, 07:55 PM
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Re: Temp related velocity loss

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?

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WRONG?

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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????
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  #11  
Old 12-09-2005, 09:49 PM
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Re: Temp related velocity loss

What can you say. According to Bounty Hunter, RL-22 is the floor sweepings after Norma get through bagging the good stuff.
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