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PART 2
achiev
THE RELOADING OF AMMUNITION REALLY TOOK
OFF OVER THE PAST FEW
YEARS, PARTICULARLY
AMONGST HUNTERS.
HOWEVER, THIS ART
HAS BEEN PRACTICED
BY TARGET SHOOTERS.
PART ONE OF THIS ARTICLE APPEARED IN THE
JUNE/JULY EDITION
OF SENWES SCENARIO.
HEREWITH PART 2:
Table 1: Absolute Minima calculation
Shot Load
1st
2nd
no. (gr) Ft/sec Difference Difference
1
40
2519
47
2
40.2
2566
-52
-5
3
40.4
2561
22
27
4
40.6
2588
-24
3
5
40.8
2591
22
25
6
41
2616
-25
0
7
41.2
2616
-16
-16
8
41.4
2600
4
20
9
41.6
2620
-20
FRANS DREYER
ABSOLUTE MINIMA CALCULATION
The first step in this calculation is
obviously to enter the load and the
speed of each load (normally
in foot per second) of
48 AUG/SEP 2016
• SENWES Scenario
the minimum to maximum load,
on the spreadsheet. The difference
in speed between the different
loads is then calculated in the 1st
Difference-column. The value of
47 is only (2566 – 2519) and -5 is
(2561 – 2566). The rest of the values in the 1st Difference-column
are calculated in the same manner.
In the 2nd Difference-column
the process is repeated and the
difference of the speed difference
is determined. The value -52 is
only ((-5) – ABS(47)). The ABS
before the value being deducted
is a function in Excel and merely
means that the absolute value or
positive value of the number must
be deducted. The sign in front of
the figure should therefore not be
taken into account. Similarly the
value 22 is then (27 – ABS(-5)).
The rest of the values in column
two are then calculated accordingly.
After this calculation a trend
can usually be seen in the 2nd Difference-column, where the values
from top to bottom become nega-