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
Bullet BC
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="Kevin Thomas" data-source="post: 273135" data-attributes="member: 15748"><p>Hi Zach,</p><p></p><p>Well, you <u>could</u> do that, but frankly, the results are going to be a highly suspect educated guess, nothing more. There's a lot of factors that come into play here, and chrono errors are always a part of that. This is mostly due to their set-up, screen separation distances, distance to muzzle, etc.. Add to this the errors induced by trying to reset the same screens at a different distance, firing another set of the "same" ammunition, and basically you've got a recipe for a real goat rope here. Not worth the time or effort to wind up with what would be very suspect (at best) data. The easiest way here would be to use something like the Oehler 43, which is capable of generating BCs and is a more or less self contained unit. Rather than do all this, I'd really suggest you pick up that copy of Hatcher's Notebook. It will explain a lot of this in pretty readable terms, and there's a wealth of other information in there as well. I think I've gone through about four copies over the years and read the covers off them, quite literally.</p><p></p><p>Kevin</p></blockquote><p></p>
[QUOTE="Kevin Thomas, post: 273135, member: 15748"] Hi Zach, Well, you [U]could[/U] do that, but frankly, the results are going to be a highly suspect educated guess, nothing more. There's a lot of factors that come into play here, and chrono errors are always a part of that. This is mostly due to their set-up, screen separation distances, distance to muzzle, etc.. Add to this the errors induced by trying to reset the same screens at a different distance, firing another set of the "same" ammunition, and basically you've got a recipe for a real goat rope here. Not worth the time or effort to wind up with what would be very suspect (at best) data. The easiest way here would be to use something like the Oehler 43, which is capable of generating BCs and is a more or less self contained unit. Rather than do all this, I'd really suggest you pick up that copy of Hatcher's Notebook. It will explain a lot of this in pretty readable terms, and there's a wealth of other information in there as well. I think I've gone through about four copies over the years and read the covers off them, quite literally. Kevin [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet BC
Top