Shooting Sports USA - January 2018 - 30

Now comes frequency of fire. When I am
sighting-in or checking accuracy of a load I fire
three to five shot groups quickly. I load the rifle's
magazine just like in "real life." Then I find an
aiming point somewhere on the target. Then I
fire my shots rather quickly-and I do my part
of the job of benching and operating the trigger,
etc. correctly. At this point, I don't care where
the shots hit on the target, or where the ejected
brass goes (I can clean it later-messing around
with it takes valuable time). I just want a group.
When I am done with the shots, only then do
I care to check group size, etc. My deliberately
and carefully fired three or five shot strings are
finished in under a minute.
By getting the group fired quickly and
carefully, the barrel does not have time to heat
sink enough to affect subsequent shots so built
up barrel heat does not alter things-because
I don't give it time to do so. Firing one or two
shots and waiting allows the barrel to heat sink
more thoroughly and maybe open the group
up. Spread that heat affect over several minutes
and each shot may act as if it were from a
different gun.
More importantly, the wind and mirage effects
on the shot in that quick three to five shot string
are much less than if I spread that string over
several minutes, thus giving the wind and
mirage (and barrel temperature) time to change.
This is especially important if the shooter is not
experienced at wind and mirage reading. And,
trust me, even in winter there is a mirage, you
may not see it but it is there and that mirage
moves the target image you see with your eyes
to a different place.
The most efficient competitive shooters can
judge where to hold to compensate for mirage,
but that takes lots of shooting and note-taking
to learn. Most of us at sight-in time are testing

30

JANUARY 2018 | SSUSA.ORG

PHOTOS BY JOHN PARKER

FEATURE | SIGHTING

Precision rifle shooters will usually shoot "barrel
warmers," even in matches with nicer weather.

the gun and ammunition, and not our ability
(or lack thereof) to adjust for conditions. Best
solution, get the shots off quicker so there is
less weather and heat effect on that particular
group-remember, shoot correctly!
Arriving at a range with a brand new rifle
(refer to my new barrel preparation article in an
earlier issue of SSUSA) I prefer checking with a
shot or two at 50 yards to see if it will even hit
paper. If it does, I know where it hits and I can
make a 100-yard adjustment to begin the actual
accuracy checking. This short range shooting is
a good time to get rid of old ammunition and
foul the barrel though firing. Then I begin at
100 yards. If things look good I may go to 200
or much further out just for fun. Remember,
the further out you test the better you need to
be with wind and mirage readings-it really
matters beyond 300 yards. And for what it is


https://www.ssusa.org/articles/2015/11/20/sights-wind-and-mirage http://www.SSUSA.ORG

Table of Contents for the Digital Edition of Shooting Sports USA - January 2018

In This Issue
Shooting Sports USA - January 2018 - Cover1
Shooting Sports USA - January 2018 - Cover2
Shooting Sports USA - January 2018 - 3
Shooting Sports USA - January 2018 - 4
Shooting Sports USA - January 2018 - 5
Shooting Sports USA - January 2018 - In This Issue
Shooting Sports USA - January 2018 - 7
Shooting Sports USA - January 2018 - 8
Shooting Sports USA - January 2018 - 9
Shooting Sports USA - January 2018 - 10
Shooting Sports USA - January 2018 - 11
Shooting Sports USA - January 2018 - 12
Shooting Sports USA - January 2018 - 13
Shooting Sports USA - January 2018 - 14
Shooting Sports USA - January 2018 - 15
Shooting Sports USA - January 2018 - 16
Shooting Sports USA - January 2018 - 17
Shooting Sports USA - January 2018 - 18
Shooting Sports USA - January 2018 - 19
Shooting Sports USA - January 2018 - 20
Shooting Sports USA - January 2018 - 21
Shooting Sports USA - January 2018 - 22
Shooting Sports USA - January 2018 - 23
Shooting Sports USA - January 2018 - 24
Shooting Sports USA - January 2018 - 25
Shooting Sports USA - January 2018 - 26
Shooting Sports USA - January 2018 - 27
Shooting Sports USA - January 2018 - 28
Shooting Sports USA - January 2018 - 29
Shooting Sports USA - January 2018 - 30
Shooting Sports USA - January 2018 - 31
Shooting Sports USA - January 2018 - 32
Shooting Sports USA - January 2018 - 33
Shooting Sports USA - January 2018 - 34
Shooting Sports USA - January 2018 - 35
Shooting Sports USA - January 2018 - 36
Shooting Sports USA - January 2018 - 37
Shooting Sports USA - January 2018 - 38
Shooting Sports USA - January 2018 - 39
Shooting Sports USA - January 2018 - 40
Shooting Sports USA - January 2018 - 41
Shooting Sports USA - January 2018 - 42
Shooting Sports USA - January 2018 - 43
Shooting Sports USA - January 2018 - 44
Shooting Sports USA - January 2018 - 45
Shooting Sports USA - January 2018 - 46
Shooting Sports USA - January 2018 - 47
Shooting Sports USA - January 2018 - 48
Shooting Sports USA - January 2018 - 49
Shooting Sports USA - January 2018 - 50
Shooting Sports USA - January 2018 - 51
Shooting Sports USA - January 2018 - 52
Shooting Sports USA - January 2018 - 53
Shooting Sports USA - January 2018 - 54
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