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
B.C./Drop Report--MUST READ&COMMENT
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="MontanaRifleman" data-source="post: 357417" data-attributes="member: 11717"><p>These drops really aren't that far off the mark. If I run a .5 BC with an MV of 3500 @ 5000' elevation zeroed @ 320 yds I get</p><p> </p><p>100 - +2.6, 300 - +1.0, 400 - -5.6</p><p> </p><p>with a BC of .4 I get</p><p> </p><p>100 - +2.8, 300 - +1.0, 400 - - 6.0</p><p> </p><p>with a BC .4 and an MV of 3700 I get</p><p> </p><p>100 - +2.4, 300 - +0.9, 400, - -5.3</p><p> </p><p>Not a whole lot of difference between those and all very close to the bullets actual published BC.</p><p> </p><p>The data provided is much too general and just slightest mis reading at those short distances can result in huge calculated BC swings. Chrony's are not all that reliable and how consistant are the loads being used? There are a lot of possible varibles that could greatly affect a calculated BC at those short distances including maybe the possibility of pitch and yaw.</p><p> </p><p>Will be interested in reading the rest of the article but I think it will mostly be anecdotal based on info provided so far.</p><p> </p><p>-Mark</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 357417, member: 11717"] These drops really aren't that far off the mark. If I run a .5 BC with an MV of 3500 @ 5000' elevation zeroed @ 320 yds I get 100 - +2.6, 300 - +1.0, 400 - -5.6 with a BC of .4 I get 100 - +2.8, 300 - +1.0, 400 - - 6.0 with a BC .4 and an MV of 3700 I get 100 - +2.4, 300 - +0.9, 400, - -5.3 Not a whole lot of difference between those and all very close to the bullets actual published BC. The data provided is much too general and just slightest mis reading at those short distances can result in huge calculated BC swings. Chrony's are not all that reliable and how consistant are the loads being used? There are a lot of possible varibles that could greatly affect a calculated BC at those short distances including maybe the possibility of pitch and yaw. Will be interested in reading the rest of the article but I think it will mostly be anecdotal based on info provided so far. -Mark [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
B.C./Drop Report--MUST READ&COMMENT
Top