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
How come the barrel is this way?
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="gr8whyt" data-source="post: 493957" data-attributes="member: 28526"><p>onzah is right. The rifling in the barrel is cut, swaged, or some other method the full length of the barrel at a rate of 1 full turn in 10 inches. Faster twist rates would be 1 in 9 or one in 8. Slower rates would be 1 in 12 or 1 in 14, for example. The chamber is reamed and a very small area in front of the chamber is reamed straight at the groove diameter. That area is called freebore or leade and for your .308 it's about 0.11 inch tapering for about another 0.25 inch until lands are full height. The rest of the barrel retains the original rifling all the way to the muzzle.</p><p></p><p>-- gr8whyt</p></blockquote><p></p>
[QUOTE="gr8whyt, post: 493957, member: 28526"] onzah is right. The rifling in the barrel is cut, swaged, or some other method the full length of the barrel at a rate of 1 full turn in 10 inches. Faster twist rates would be 1 in 9 or one in 8. Slower rates would be 1 in 12 or 1 in 14, for example. The chamber is reamed and a very small area in front of the chamber is reamed straight at the groove diameter. That area is called freebore or leade and for your .308 it's about 0.11 inch tapering for about another 0.25 inch until lands are full height. The rest of the barrel retains the original rifling all the way to the muzzle. -- gr8whyt [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
How come the barrel is this way?
Top