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
Twist vs Bullet Weight Question
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="Mikecr" data-source="post: 2938033" data-attributes="member: 1521"><p>I doubt stability differences are significantly tied weight differences. That just fails too many tests.</p><p>Stability is tied to center of mass -vs- center of pressure. This, creating an overturning arm, the length of which depends on their spread.</p><p>Longer bullets (regardless of weight) tend to exhibit more overturning moment -because their center of mass falls further behind center of drag.</p><p>Higher drag causes the center of pressure to be higher w/respect to center of mass.</p><p></p><p>Both must be overcome with gyroscopic inertia per overturning displacement (not per time)(forget RPMs).</p><p>And consider the reality that gyroscopic inertia would not be needed for bullets in the vacuum of space.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 2938033, member: 1521"] I doubt stability differences are significantly tied weight differences. That just fails too many tests. Stability is tied to center of mass -vs- center of pressure. This, creating an overturning arm, the length of which depends on their spread. Longer bullets (regardless of weight) tend to exhibit more overturning moment -because their center of mass falls further behind center of drag. Higher drag causes the center of pressure to be higher w/respect to center of mass. Both must be overcome with gyroscopic inertia per overturning displacement (not per time)(forget RPMs). And consider the reality that gyroscopic inertia would not be needed for bullets in the vacuum of space. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Twist vs Bullet Weight Question
Top