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
Does BC matters?
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="QuietTexan" data-source="post: 2613994" data-attributes="member: 116181"><p>100% correct, for BC alone to be a valid point of comparison between two bullets they must share a common design philosophy. Otherwise significant additional information has to be provided to be able to construct a comparison. The G7 form factor provides a decently condensed data point to account for design differences - primarily it accounts for bullet length as part of overall weight, and narrows the range of potential gyroscopic stability variances because similarly designed bullets will have similar velocity ranges where instability will cause a degradation of BC.</p><p></p><p>The best advancements in high-BC design are in turned monos, and CE is leading the pack here with their tipped fracturing petal designs. High BC, very consistent bullet-to-bullet BCs, about the only downside is they require higher twist rates than commonly sold in off-the-rack rifles. Twist rates so high in fact they can make cup and core bullets unshootable. It takes a 6 twist to spin a .308 CE 240gn, try to run a 210 Berger through that coming out of a big magnum and the only thing that gets to the target might be shrapnel.</p><p></p><p>Even Berger got on board with turned monos for their 375 for ELR.</p></blockquote><p></p>
[QUOTE="QuietTexan, post: 2613994, member: 116181"] 100% correct, for BC alone to be a valid point of comparison between two bullets they must share a common design philosophy. Otherwise significant additional information has to be provided to be able to construct a comparison. The G7 form factor provides a decently condensed data point to account for design differences - primarily it accounts for bullet length as part of overall weight, and narrows the range of potential gyroscopic stability variances because similarly designed bullets will have similar velocity ranges where instability will cause a degradation of BC. The best advancements in high-BC design are in turned monos, and CE is leading the pack here with their tipped fracturing petal designs. High BC, very consistent bullet-to-bullet BCs, about the only downside is they require higher twist rates than commonly sold in off-the-rack rifles. Twist rates so high in fact they can make cup and core bullets unshootable. It takes a 6 twist to spin a .308 CE 240gn, try to run a 210 Berger through that coming out of a big magnum and the only thing that gets to the target might be shrapnel. Even Berger got on board with turned monos for their 375 for ELR. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Does BC matters?
Top