You are Unregistered, please register to use all of the features of FirearmsTalk.com!

Firearm & Gun Forum - FireArmsTalk.com >

# Dope card

04-22-2013, 01:34 AM   #1
Feedback Score: 0 reviews

Join Date: Nov 2012
Posts: 133
Liked 16 Times on 7 Posts

Dope card

Ok so I have the amount of bullet drop in inches and I'd like to convert it to how many "clicks" on my scope I need to adjust? My scope adjustment is 1 click =1/4 moa

 Join FirearmsTalk.com Today - It's Free! Are you a firearms enthusiast? Then we hope you will join the community. You will gain access to post, create threads, private message, upload images, join groups and more. Firearms Talk is owned and operated by fellow firearms enthusiasts. We strive to offer a non-commercial community to learn and share information. Join FirearmsTalk.com Today! - Click Here

04-22-2013, 01:43 AM   #2
Feedback Score: 0 reviews

Join Date: Feb 2008
Location: Third bunker on the right,Central Virginia
Posts: 21,308
Liked 16481 Times on 6794 Posts
Likes Given: 2692

For practical purposes, 1 minute of angle is 1 inch at 100 yards, 2 inches at 200, 3 inches at 300, etc.

To change point of impact by 3 inches, that would be 12 clicks at 100 yards, 6 at 200, etc. Remember it is ANGLE- so as the point of impact moves away, even though angle stays the same, the amount of distance becomes greater.
__________________
What we have here is... failure- to communicate.

04-22-2013, 12:51 PM   #3
Feedback Score: 0 reviews

Join Date: Oct 2008
Posts: 4,434
Liked 2266 Times on 1222 Posts
Likes Given: 975

As long as you know the velocity and ballistic coefficient of the bullet being shot,you can use a ballistic calculator to get your scope dope.
There are several ballistic calculators available online,some are pretty basic,others are in depth of many variables.
I use the JBM Ballistic Calculator for all of my dope cards. For me,it is the best that I've used,and if I've done all my inputs correctly,it's dead on at any range. I print out the info,and tape it to my rifles.Then all I have to do in the field is range the target(animal),and turn the turrets,pull the trigger.

http://www.jbmballistics.com/ballistics/calculators/calculators.shtml

On my 25/06,I taped the dope card to the stock under the action.I hunt with this rifle a lot,and can see this info very easily by just tilting the rifle a little while being shouldered.

The 6.5 Creedmoor has a drop magazine,so I had to put the dope card on the side of the stock on the butt. It is still very easy to read quickly,and then crank the turrets.

 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Firearms Forum Replies Last Post Vincine The Club House 3 11-23-2012 04:37 PM PA_Rifleman Optics & Mounts 0 05-25-2012 10:31 PM alsaqr Politics, Religion and Controversy 10 04-27-2012 12:22 AM alsaqr Politics, Religion and Controversy 14 10-21-2011 01:52 AM SHSBulldog06 Legal and Activism 101 06-25-2010 10:27 PM