Active TopicsActive Topics  Display List of Forum MembersMemberlist  Search The ForumSearch  HelpHelp
  RegisterRegister  LoginLogin  

Home | Load data | Articles | Ballistic Calc | Energy Calc
Long Guns
 Handloads.Com Forum : Long Guns
Subject Topic: BDC Reticle Post ReplyPost New Topic
Author
Message << Prev Topic | Next Topic >>
Abram
Senior Member




Joined: January 07 2008
Location: Alabama
Posts: 815
Online Status: Offline
Posted: January 08 2019 at 10:39am | IP Logged Quote Abram

Spinning off from my previous two threads, how many on here have ever used a BDC (Bullet Drop Compensation) reticle for long range shooting. When I bought my RAP it was from an individual that had mounted one of these scopes and I have only used it at the local 100 yard range. I also understand from reading that the marks are normally calculated using specific rifle and loads. I am guessing that I will need to make a visit to a much longer range and through trial and error figure out how the reticle marks will work with my handloads.
Back to Top View Abram's Profile Search for other posts by Abram
 
KinleyWater
Senior Member


Avatar

Joined: August 12 2016
Posts: 487
Online Status: Offline
Posted: January 08 2019 at 1:37pm | IP Logged Quote KinleyWater

You are correct, sir. The manufacturer may provide software to cut down on the error part of the trial and error. I have a Nikon with BDC and there is a website where I can enter bullet weight, bc, and muzzle velocity. The website then spits out a bunch of reports, like what the different drops equate to, etc. Also, I know nothing of your particular scope, but if it is a second plane reticle, the drop compensation will be different at every magnification, so you will need to work out various settings and do up a DOPE sheet.

**Just read your other post and it looks like your's is a Nikon as well. The link to their software is here: http://spoton.nikonsportoptics.com/spoton/spoton.html#:4

Using it is very simple, but there is a lot to it. Of note, I mentioned a DOPE sheet above - this can be had under the "Generate Ballistic Report" option, then selecting "Field Reference Chart". It's frustrating that it doesn't just generate all the charts at the same time, but not a terrible burden.

You really need a chronograph to make best use of this, but since this is just a starting point, you could use book velocities. Also, it helpful to remember that the drop compensation will also be different at different elevations, but that can be simulated under the "Atmospheric Conditions" option.

Hope this helps.

Edited by KinleyWater on January 08 2019 at 1:49pm


__________________
List of guns/ calibers I own.
Pithy quote.
Back to Top View KinleyWater's Profile Search for other posts by KinleyWater
 
Abram
Senior Member




Joined: January 07 2008
Location: Alabama
Posts: 815
Online Status: Offline
Posted: January 08 2019 at 6:41pm | IP Logged Quote Abram

Thank you for the link. I do have a chronograph but have not used it yet, I need a good tripod. This is going to be a serious learning curve for me.
Back to Top View Abram's Profile Search for other posts by Abram
 
KinleyWater
Senior Member


Avatar

Joined: August 12 2016
Posts: 487
Online Status: Offline
Posted: January 08 2019 at 6:53pm | IP Logged Quote KinleyWater

You are most welcome, sir.

I was given a nice photographer's tripod from someone who purchased it at a local Goodwill. You may be able to do likewise, either at a used goods store or pawnshop.

** For me, reading downrange wind was a challenge.

Edited by KinleyWater on January 08 2019 at 6:56pm


__________________
List of guns/ calibers I own.
Pithy quote.
Back to Top View KinleyWater's Profile Search for other posts by KinleyWater
 
M700
Senior Member


Avatar

Joined: June 12 2004
Location: Washington
Posts: 6649
Online Status: Offline
Posted: January 09 2019 at 3:27am | IP Logged Quote M700

Agree. Elevation is just math, and hardly even difficult often. But wind... As the range increases, the wind has so much affect on the point of impact!

It can blow that doggone bullet around... Wow!

Guy

Edited by M700 on January 09 2019 at 3:30am
Back to Top View M700's Profile Search for other posts by M700
 

Home | Load data | Articles | Ballistic Calc | Energy Calc

If you wish to post a reply to this topic you must first login
If you are not already registered you must first register

  Post ReplyPost New Topic
Printable version Printable version

Forum Jump
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You can vote in polls in this forum

Powered by Web Wiz Forums version
Copyright ©2001-2008 Web Wiz Guide

This page was generated in 0.1250 seconds.