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
REVERSE TEMP SENSITIVITY????
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="Dean2" data-source="post: 2666677" data-attributes="member: 26077"><p>Have done a lot of shooting below -20F. What you have observed is actually quite common. I have never had a load give me high enough pressures to pierce a primer or stiffen the bolt but I have seen them pick up as much as 150 FPS. Stainless barrels show this more often than Chrome Moly because the rate of contraction on stainless is higher in the cold. For a few years there was a belief that you should not shoot stainless barrels and actions at temperature below -35 F but I have used them to -50 with no issues.</p><p></p><p>The powder slows down in the cold but the contraction in the barrel diameter is more than enough to offset that. What you will find is if you fire a string of shots fairly quickly, the velocity will drop back down as the barrel heats up.</p></blockquote><p></p>
[QUOTE="Dean2, post: 2666677, member: 26077"] Have done a lot of shooting below -20F. What you have observed is actually quite common. I have never had a load give me high enough pressures to pierce a primer or stiffen the bolt but I have seen them pick up as much as 150 FPS. Stainless barrels show this more often than Chrome Moly because the rate of contraction on stainless is higher in the cold. For a few years there was a belief that you should not shoot stainless barrels and actions at temperature below -35 F but I have used them to -50 with no issues. The powder slows down in the cold but the contraction in the barrel diameter is more than enough to offset that. What you will find is if you fire a string of shots fairly quickly, the velocity will drop back down as the barrel heats up. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
REVERSE TEMP SENSITIVITY????
Top