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
New JBM range card
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="AJ Peacock" data-source="post: 301736" data-attributes="member: 4885"><p>A couple weeks ago, I sent in a request to JBM for an enhancement to their range cards. I use the Nightforce NP-R1 Reticle, shown below. It has 40 moa graduations (10 above the crosshair and 30 below the crosshair). I normally build my range card by repeatedly running the ballistics programs until I figure out the exact yardage that each of the graduations represent. I set my zero so the top graduation (10moa above the crosshair) is set for 100yds.</p><p></p><p>Well, JBM made it easy with their new range card. They call it a 'constant drop' range card, as it will give it's output for a specified constant drop (every 1/4moa for example). I ran it for my 338Allen mag, 7480ft elevation, 3270fps,10mph wind and a constant drop of 1 moa to match my reticle. My zero is 731yds and viola! the following range card magically appears. The little note at the top of the rangecard is from the notes field at the top of the input screen. With this range card, I can shoot out to a mile without touching the elevation knob.</p><p></p><p></p><p><img src="http://i168.photobucket.com/albums/u193/AJPeacock_photos/random-forum-stuff/newrangecard-1.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Enjoy,</p><p>AJ</p></blockquote><p></p>
[QUOTE="AJ Peacock, post: 301736, member: 4885"] A couple weeks ago, I sent in a request to JBM for an enhancement to their range cards. I use the Nightforce NP-R1 Reticle, shown below. It has 40 moa graduations (10 above the crosshair and 30 below the crosshair). I normally build my range card by repeatedly running the ballistics programs until I figure out the exact yardage that each of the graduations represent. I set my zero so the top graduation (10moa above the crosshair) is set for 100yds. Well, JBM made it easy with their new range card. They call it a 'constant drop' range card, as it will give it's output for a specified constant drop (every 1/4moa for example). I ran it for my 338Allen mag, 7480ft elevation, 3270fps,10mph wind and a constant drop of 1 moa to match my reticle. My zero is 731yds and viola! the following range card magically appears. The little note at the top of the rangecard is from the notes field at the top of the input screen. With this range card, I can shoot out to a mile without touching the elevation knob. [IMG]http://i168.photobucket.com/albums/u193/AJPeacock_photos/random-forum-stuff/newrangecard-1.jpg[/IMG] Enjoy, AJ [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
New JBM range card
Top