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
Hunting
Long Range Hunting & Shooting
Rifle shooting high consistently with drop chart
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="AZShooter" data-source="post: 1127025" data-attributes="member: 5219"><p>I have only encountered three rifles to date that didn't perform as suggested by the input data to the ballistics program. </p><p></p><p>When it happened the first time I checked and rechecked the inputs. Drove me nuts. </p><p></p><p>I tried to manipulate the comeups by lowering or raising the BC. It would work for one distance but to get it to match several impact distances couldn't do it. </p><p></p><p>I began to conclude that the only input that worked was changing the velocity. </p><p></p><p>Recently a 338 RUM shooting the 300 gr matchking shot low at all distances. At first I thought the POI at 100 had changed, it didn't. Eventually had to lower the velocity from 2850 to 2800 and it was good. </p><p>You wouldn't think a CED and a magnetospeed would be that far off when both showed same velocities. What is causing this? Bullet not perfectly stabilized? </p><p></p><p>I have thought about this often. Perhaps some other factors are at work. Input POI at 100 yd or 200 yds was wrong? Shooting uphill/downhill? Headwind, tailwind? Shooter's form is off? Not enough rounds fired for a good sample?</p><p></p><p>I just sent Bryan Litz an e-mail on this thread. Hoping he has the time to respond.</p></blockquote><p></p>
[QUOTE="AZShooter, post: 1127025, member: 5219"] I have only encountered three rifles to date that didn't perform as suggested by the input data to the ballistics program. When it happened the first time I checked and rechecked the inputs. Drove me nuts. I tried to manipulate the comeups by lowering or raising the BC. It would work for one distance but to get it to match several impact distances couldn't do it. I began to conclude that the only input that worked was changing the velocity. Recently a 338 RUM shooting the 300 gr matchking shot low at all distances. At first I thought the POI at 100 had changed, it didn't. Eventually had to lower the velocity from 2850 to 2800 and it was good. You wouldn't think a CED and a magnetospeed would be that far off when both showed same velocities. What is causing this? Bullet not perfectly stabilized? I have thought about this often. Perhaps some other factors are at work. Input POI at 100 yd or 200 yds was wrong? Shooting uphill/downhill? Headwind, tailwind? Shooter's form is off? Not enough rounds fired for a good sample? I just sent Bryan Litz an e-mail on this thread. Hoping he has the time to respond. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
Long Range Hunting & Shooting
Rifle shooting high consistently with drop chart
Top