Re: Bryan Litz and MOBALL
Here's a testimonial I got recently from a MOBALL user:
<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">Brian,
Yesterday I sighted in two loads with my 6.5x284 target rifle,
one with 123gr SMKs and the other with 142gr SMKs. Elevation was
4170ft, 34 degrees F. I recorded muzzle velocity averages and noted
that the cold barrel shot was 29fps slower than the average and the
2nd shot 12fps slower than average.
Today I took it to a friends place who has gongs up to 1000yds.
The elevation was only 1800ft so the atmospheric pressure read by
my Kestral was quite different than from where I sighted in, as well
as being warmer. I made the assumption that the 100yd zero would
be the same at both elevations.
In the new conditions I had to resort to trial and error with
the Moball computer to find a sight-in range that gave me the same
100yd point of impact as when I sighted in the previous day under
different conditions.
The moment of truth was at hand. I decided to try it first at
1000yd. I input all of the conditions and used the G7 B.C.
published in your book. For the first shot I dialed in the "cold
barrel velocity" as being 29fps slower.
To make a long story short I nailed the 1000yd gong, which is
26" in diameter, with the first shot, and the 2nd, and the 3rd, etc.
I quit after 6 shots and no misses. This was with the 123gr SMK.
I then went through the input process again with the 142gr SMK
load, which during sight-in had produced an extreme spread of 5 and
a SD of 2. I fired 3 rounds, all center hits, and then asked each
of my spotters to try a shot. The resulting 5 shot group at 1000yd
was perfectly centered and looked to be about a 5" group.
Several hours later We tested the rifle and your ballistics at
rocks on a far hillside, having an uphill elevation of up to 12
degrees. We shot at 772yds, at 1\2 mile [880 yd], and at 999yd. In
all cases the elevation dialed in with the numbers produced by the
Moball computer were perfect, We did have a little more trouble on
the wind axis. The last shots of the day were at 999yd where I
fired 2 shots and each of my spotters fired one.. All shots hit the
rock which appeared to be about 9 inches in diameter.
In conclusion I cannot begin to tell you how pleased I am with
the performance of Moball using all of the understanding and B.C.s
provided by your book.</div></div>
We all know that accurate long range shooting takes work and good equipment. It's encouraging to know that first shot hits on distant targets are possible with proper preparation, and when the right tools are used for the job.
-Bryan
