Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Long Range Scopes and Other Optics

Long Range Scopes and Other Optics Nightforce Optics


Reply

Checking the Reticle

 
LinkBack Thread Tools Display Modes
  #1  
Old 06-14-2010, 09:09 AM
Platinum Member
 
Join Date: Jun 2001
Location: Potomac River
Posts: 5,059
Checking the Reticle

If you are going to use your reticle for holdover shooting you should check to make sure that the reticle subtends (measures) the correct dimensions that the manufacturer says it measures.

Here is a target I made up for a Burris Ballistic Plex to determine whether the literature values were correct. I took some painters tape and made a vertical line and then measured down the vertical line with a ruler and placed a strip of tape horizontally so the bottom was at the correct distance from the top of the tape. Once I had the supposedly correct reticle dimensions laid out I took it to the range and carefully measured with a range finder to make sure that the range was actually 100 yards. It seemed to be about 99.5 yards and that was close enough for a holdover scope. I then placed the gun in sandbags and carefully checked to ensure that the reticle marks lined up where they were supposed to be. Sure enough the top of the duplex in the reticle was not where Burris said it was and that was introducing a 2.5 MOA error into everything.


Just for the curios all of the bullet holes on the left are from a 40X in 308 and I am testing of a F-class load that works with Winchester brass to see if it works with RWS brass. There are 0.5 grain increments of Varget between groups. As you can see the bottom 5 shot group is pretty decent. The fist shot groups is only 4 shots because naturally I forgot to dial out the 36 MOA from the last time I was shooting the rifle and the first shot went up into the wild blue yonder.

The groups on the left are just me checking the zero on the XP 100 with the Burris ballistic plex and obviously it was not too well zeroed.

__________________
The Smokin Fur Rifle Club
Reply With Quote
  #2  
Old 06-15-2010, 10:38 AM
Silver Member
 
Join Date: Dec 2006
Posts: 336
Re: Checking the Reticle

Great idea! Thanks for sharing your wisdom with us!
Reply With Quote
  #3  
Old 06-15-2010, 05:27 PM
Platinum Member
 
Join Date: Feb 2003
Location: Pueblo, CO
Posts: 1,175
Re: Checking the Reticle

Interesting Bob. That's exactly the same problem i had with my Burris. The plex portion to x-hair was incorrect. Good info. sir.
Reply With Quote
  #4  
Old 06-16-2010, 08:21 AM
Silver Member
 
Join Date: Dec 2005
Location: Longmont, Colorado
Posts: 327
Re: Checking the Reticle

How well did the other hash marks like up with what Burris stated?

I like my ballistic mildot scope from Burris, but I've been less than impressed with their tech guys. For this reticle, it is calibrated ("around 14X"). I wrote and asked what the subtends would be at 20X, and they said "we don't know, you would have to figure that out." I thought that response was weak.
__________________
If you like your hunting rifle, you can keep your hunting rifle.
Reply With Quote
  #5  
Old 06-16-2010, 06:42 PM
Platinum Member
 
Join Date: Jun 2001
Location: Potomac River
Posts: 5,059
Re: Checking the Reticle

The remainder of the reticle from the cross hairs down was perfect. The scope under discussion is the pistol scope. Its elevation dial is in 1/8 inch clicks and there are not markings on it to be useful in dialing up. Thus you are better off using the scope in a holdover manner than trying to dial up for shots.
__________________
The Smokin Fur Rifle Club
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Checking the Reticle
Thread Thread Starter Forum Replies Last Post
Checking in from Texas R.Ph. 380 Member Introductions 1 03-10-2011 01:45 AM
Checking my self Crew Dawg The Basics, Starting Out 8 01-24-2011 10:42 AM
AZ checking in minguscoues Member Introductions 1 01-10-2010 01:18 PM
FNG checking in. jerrschmitt Member Introductions 1 02-28-2009 11:40 PM
new guy checking in Romad General Discussion 4 01-07-2004 12:23 AM


All times are GMT -5. The time now is 12:39 AM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC