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
Rifles, Bullets, Barrels & Ballistics
7mm??? Build
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="fmajor" data-source="post: 760256" data-attributes="member: 20646"><p>I gotta say i'm a big fan of the 7mm bore. It does well with long-range performance (trajectory essentially) and is easy to make hot-rod loadings for it without extreme increases in felt recoil. </p><p></p><p>However, with *all* calibers we run into the problem of powder burning out the barrel/throat when we're trying to get lazer-like trajectories. With radical increases in powder load (to achieve higher velocity), the throat can burn out so fast it can be challenging to develop the most accurate/most velocity before deterioration creates an unstable evaluation platform.</p><p></p><p>If extra barrel length helps that's great, but i believe the barrel length diminishing return is dependent on maximum powder charge - ie a 22-250 will achieve maximum powder-charge burn in a shorter barrel than say a 416 RUM.</p></blockquote><p></p>
[QUOTE="fmajor, post: 760256, member: 20646"] I gotta say i'm a big fan of the 7mm bore. It does well with long-range performance (trajectory essentially) and is easy to make hot-rod loadings for it without extreme increases in felt recoil. However, with *all* calibers we run into the problem of powder burning out the barrel/throat when we're trying to get lazer-like trajectories. With radical increases in powder load (to achieve higher velocity), the throat can burn out so fast it can be challenging to develop the most accurate/most velocity before deterioration creates an unstable evaluation platform. If extra barrel length helps that's great, but i believe the barrel length diminishing return is dependent on maximum powder charge - ie a 22-250 will achieve maximum powder-charge burn in a shorter barrel than say a 416 RUM. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mm??? Build
Top