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
What the heck is goin on?
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="Kenster-Boy" data-source="post: 80553" data-attributes="member: 2330"><p>I just got an Ohler 35 triple skyscreen chrony and then went out and shot through it. I shot 5 shots through it at 3 feet away from the middle skyscreen. I got an average of 2701 fps with my 7mm rem mag and 175gr. Sierra Matchking. I then moved it out to 53 feet away and shot through it 5 more times. It gave me an average of 2666. I ran these numbers through the JBM Calculations progam to get the actual BC. It gave me .466 It has a published BC of .608. I tried both of these numbers with the muzzle velocity of 2701 and it gives me TOTALLY wrong drop charts! I went out and shot the other day and the actual impact is WAY different than ANY drop chart I can make. </p><p></p><p>WHAT IS GOING WRONG? Any ideas are greatly appreciated.</p></blockquote><p></p>
[QUOTE="Kenster-Boy, post: 80553, member: 2330"] I just got an Ohler 35 triple skyscreen chrony and then went out and shot through it. I shot 5 shots through it at 3 feet away from the middle skyscreen. I got an average of 2701 fps with my 7mm rem mag and 175gr. Sierra Matchking. I then moved it out to 53 feet away and shot through it 5 more times. It gave me an average of 2666. I ran these numbers through the JBM Calculations progam to get the actual BC. It gave me .466 It has a published BC of .608. I tried both of these numbers with the muzzle velocity of 2701 and it gives me TOTALLY wrong drop charts! I went out and shot the other day and the actual impact is WAY different than ANY drop chart I can make. WHAT IS GOING WRONG? Any ideas are greatly appreciated. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
What the heck is goin on?
Top