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
Hypothetical BC 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="BryanLitz" data-source="post: 483793" data-attributes="member: 7848"><p>To put the above information into the context of your specific question...</p><p></p><p>If they're truly the same shape, </p><p>the 240 grain bullet will have a BC that's 1.116 times higher than the 215 at all speeds.</p><p></p><p>Because 240/215 = 1.116.</p><p></p><p>That's 11.6% higher BC for the 240 grain.</p><p></p><p>So if the 215 has a BC of .665 at a given speed (or averaged over a given speed range), then the 240 will have a BC of .665*1.116 = .742.</p><p></p><p>Bear in mind the 240 will suffer depressed MV, so the performance of the heavier bullet won't be as much better as the BC implies, but it will be a little better even at a reduced MV assuming equal chamber pressure for both bullets.</p><p></p><p>-Bryan</p></blockquote><p></p>
[QUOTE="BryanLitz, post: 483793, member: 7848"] To put the above information into the context of your specific question... If they're truly the same shape, the 240 grain bullet will have a BC that's 1.116 times higher than the 215 at all speeds. Because 240/215 = 1.116. That's 11.6% higher BC for the 240 grain. So if the 215 has a BC of .665 at a given speed (or averaged over a given speed range), then the 240 will have a BC of .665*1.116 = .742. Bear in mind the 240 will suffer depressed MV, so the performance of the heavier bullet won't be as much better as the BC implies, but it will be a little better even at a reduced MV assuming equal chamber pressure for both bullets. -Bryan [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Hypothetical BC question
Top