RCBS AmmoMaster Chronograph - Manual (Page 6)

Figure 13 - “Ready” on “Shot” 1
2. While recording shot velocities, the most recent velocity
measurement can easily be deleted by pressing the “delete data”
button. The word “del” will show on the display (see Figure 14).
Depressing the “Yes” button will confirm the deletion of the last
recorded velocity. depressing the “no” button will prevent deletion
of velocity and resume recording shot velocities within the existing
string.
Figure 14 - Delete Current Velocity Data Point
3. Once you have fired your tenth and final shot in a string, the display
will flash between “FULL” and “1”, (see Figure 15). This means that
string 1 is full with ten recorded shot velocities.
• To start a new shot string, depress “Enter”. If all shot strings are
full, refer to the Delete String and/or the Delete All Data section
above to allow for recording more shot velocities
• To view the High, Low, Average, Extreme Spread, and Standard
Deviation of the current shot string velocities - depress the “Stats”
button and refer to the Statistical Data section below.
• If you choose to scroll through and verify shot velocities recorded
- depress the “Edit String” button and use the “Scroll” buttons to
scroll through the recorded shot velocities.
Note: When 100 shots have been recorded, all memory allocations
are full. Some or all of the data must be deleted in order to continue
collecting velocity data. The chronograph will not overwrite subsequent
data if you continue to shoot.
Figure 15 - Full String of Data
EDIT STRING FUNCTION
1. The Edit String function is one of the most useful functions on the
AmmoMaster ® Chronograph. By depressing the “edit String” button,
the unit will default to the highest string number with recorded shot
velocities. For example, if there are nine full shot strings and the
“edit String” button is depressed, the display will show an indicator
displayed directly under “String” and the display will show a “9”.
2. At this point the user is allowed to scroll through shot strings and
select the desired string to review. After determining which string to
review, depressing the “enter” button will select the desired string.
The unit will flash between the last shot velocity recorded in the
string and its corresponding velocity.
3. The user can scroll through and review shot velocities. An erroneous
velocity reading is easily deleted by depressing the “delete data”
button, followed by the “yes” button. This will shift all numbers
down. For example, if there were 8 shot velocities recorded within
a particular string and shot 4 velocity was deleted, shots 1-3 will
remain unchanged. however, the old shot 5 will become the new
shot 4, and the old shot 6 will become the new shot 5, etc. up to
shot 7. The string can be filled by appending new shot velocities by
simply depressing the “Add data” button or the “enter” button. The
display will flash between string and shot, which means the unit is
ready to record the next velocity reading and you can begin shooting.
Or, by pressing “Enter” again, the unit will begin on shot 1 of the next
blank string.
PREVIOUSLY RECORDED DATA
if there is stored shot velocity data, the unit will display “rcbs” and
then automatically default to the highest level string that has no data.
For example, if strings 1-9 have stored velocity data and string 10 has
none, the unit display will flash “10” with an indicator on “String” and
flash “1” with an indicator on “Shot”. This means the unit is ready to
record shot 1 in string 10.
Note: If there are strings that are not completely filled, i.e., having
less than 10 shots per string, the unit will default to the highest level
string containing data. if this string happens to be full the display will
flash between “full” and the string number you are currently in. for
example, if in string 10; the unit display will flash between “FULL” and
“10”; meaning string 10 is full.
it is possible to access and record shot velocities to strings with
no previously recorded data by using the “edit String” function. for
example, if string 4 has no data and all of the remaining strings are
full, the unit will default to string 10 and show that string 10 is full.
(The only way for this to happen is if the user physically deleted
all the recorded shot velocities within string 4.) You can depress
“Edit String” and use “Scroll” to locate string 4. Depressing “Enter”
will select string 4 and the unit display will flash between shot “1”
and velocity “- - - -”, meaning you are in string 4 but there are no
6 RCBS AmmoMaster ® Chronograph Instructions