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Begin By Determining Your 100-Yard Sight Setting
Here’s one method that has worked well for me. I take the load that I plan to
shoot at an upcoming Long Range match to my local rifle range and determine my
sight settings for 100 yards.
Once that number has been determined, I simply add 105 minutes of elevation to
arrive at my preliminary 800 yard setting (i.e. 100 yard setting is 33 / add 105
minutes = 138).
Then, by adding 25 minutes to the 800 yard setting, I arrive at a 900 yard
setting (138 + 25 = 163). Adding another 25 minutes to my 900 yard setting
brings me to my 1,000 yard setting (163 + 25 = 188).
For your information, I shoot a Browning Creedmore .45-90 with a Paul Jones
Creedmoor Long Range 543 grain bullet propelled by 90 grains of Swiss 1 1/2
powder at about 1,300 feet per second.
Final Adjustments Are Made On The Firing Line
Although this method probably will not be the exact setting that you need, it
should get you close. Final adjustments can be made during the “2-Minute
Sighting Period” prior to the start of your relay (if one is allowed) and during
the first few shots you take at the beginning of your official “Course of Fire”.
This is when you can “dial-in” the exact settings that you want. During this period,
you’re firing at your actual target and should have a better idea where your rounds are hitting.
Talk To Other Shooters About Their Sight Settings
Another way to get preliminary sight settings is to find another shooter at the
match who is shooting the same caliber, and the same basic bullet and cartridge
configuration that you are using. Tell them that you have never shot at Long
Range before and ask them if they would be kind enough to share with you what
their sight settings are for the three distances. Most shooters will be happy to
help you.
By Darryl Hedges
Copyright© 2010 All Rights Reserved.
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