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
What effect does the number of grooves have in magnum calibers?
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="elkaholic" data-source="post: 1976383" data-attributes="member: 13833"><p>Lands can be different widths and contours depending on manufacturer. For example, A 5r Rock lands are narrower than most others and they often produce more velocity.The amount of friction produced is determined, at least in part, by total surface area of the lands, so it isnt just a matter of number of lands. Three groovers like Lilja have wider lands, but not necessarily more total surface than a barrel with more lands.</p><p>The 3 groovers tend to have a little slower throat eroision because the wider lands erode a slower rate.</p><p>5c Broughtons were known to be fast barrels</p><p>with their canted land design. I hope someone continues manufacturing them since they have recently gone out of business. The amount of polishing and bore tightness and consistency also affect speed so just comparing lands to speed isnt always the last word either.</p></blockquote><p></p>
[QUOTE="elkaholic, post: 1976383, member: 13833"] Lands can be different widths and contours depending on manufacturer. For example, A 5r Rock lands are narrower than most others and they often produce more velocity.The amount of friction produced is determined, at least in part, by total surface area of the lands, so it isnt just a matter of number of lands. Three groovers like Lilja have wider lands, but not necessarily more total surface than a barrel with more lands. The 3 groovers tend to have a little slower throat eroision because the wider lands erode a slower rate. 5c Broughtons were known to be fast barrels with their canted land design. I hope someone continues manufacturing them since they have recently gone out of business. The amount of polishing and bore tightness and consistency also affect speed so just comparing lands to speed isnt always the last word either. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
What effect does the number of grooves have in magnum calibers?
Top