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
Hunting
Extreme Long Range Hunting & Shooting (ELR)
1000 yard problems.
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="4xforfun" data-source="post: 652061" data-attributes="member: 9172"><p>I just happed to take a look at this thread....4' at 1K!!!. The first time I read it i preceved "four inches" at 1k...figured you were just braggin. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /> It's not heat....it's stress...brought on by heat. I would think that you might benifit from a cryo treatment. It was mentioned in an earlier post that ...well.." as your barrel expands from the heat you get less pressure, and that means less velocity, which would cause it to consistantly drop low". Wrong....your BBL does not expand...it swells...the OD gets bigger AND the bore constricts..giving you MORE velocity, not less. I tend to heat things up with factory tubes..just because I don't really care about them...and have never seen anything like four feet at 1K., in any direction.</p><p> </p><p>In 1K comp we purposely let things heat up to stabilize velocity....as things heat up, velocitys rise and the impacts rise...SLIGHTLY. It is not the temp of the ammo that does it....I lay a round on the loading ramp, and when I am ready to fire, I close the bolt and fire almost simultaniously (sp)..the ammo does not heat up...the FPS increase is from the swelling of the bbl....the outside dimeter gets bigger AND the bore constricts. I have seen it a million times when doing load development using a chrono. If you have stress in part of your tube, it will swell either more or less than the metal around it, causing the bbl to "bend".</p><p> </p><p>Of course, this is my .02...take it for what it is worth.</p><p> </p><p>Tod</p></blockquote><p></p>
[QUOTE="4xforfun, post: 652061, member: 9172"] I just happed to take a look at this thread....4' at 1K!!!. The first time I read it i preceved "four inches" at 1k...figured you were just braggin. :D It's not heat....it's stress...brought on by heat. I would think that you might benifit from a cryo treatment. It was mentioned in an earlier post that ...well.." as your barrel expands from the heat you get less pressure, and that means less velocity, which would cause it to consistantly drop low". Wrong....your BBL does not expand...it swells...the OD gets bigger AND the bore constricts..giving you MORE velocity, not less. I tend to heat things up with factory tubes..just because I don't really care about them...and have never seen anything like four feet at 1K., in any direction. In 1K comp we purposely let things heat up to stabilize velocity....as things heat up, velocitys rise and the impacts rise...SLIGHTLY. It is not the temp of the ammo that does it....I lay a round on the loading ramp, and when I am ready to fire, I close the bolt and fire almost simultaniously (sp)..the ammo does not heat up...the FPS increase is from the swelling of the bbl....the outside dimeter gets bigger AND the bore constricts. I have seen it a million times when doing load development using a chrono. If you have stress in part of your tube, it will swell either more or less than the metal around it, causing the bbl to "bend". Of course, this is my .02...take it for what it is worth. Tod [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
Extreme Long Range Hunting & Shooting (ELR)
1000 yard problems.
Top