spread and standard deviation; data- string functions can be edited and data functions can be deleted; velocities can be in feet per second or meters per sec- ond; low battery indicator; full string indication; 10 strings maximum stored in memory with 10-shot velocity mea- surements per string; and warranty of one year from date of purchase. The chronograph is powered by
The cables plug into the back of the control unit and a nine-volt battery provides power.
chronograph will record your data for retrieval back home … if you don’t fi re more than 100 rounds in one session. I consider this recording of shots an exceptional feature for a chronograph in this price range. Features include: 86 square inches
of available shooting area within the side supports and diffuser; 20-foot cord length between detachable display unit and body; data-string velocity read- ings provide high, low, and average; data-string calculations include extreme
a 9-volt DC battery, which should last about fi ve to six hours. When setting up the skyscreens, place the front skyscreen at least 10 feet from the muzzle for typi- cal rifl e cartridges (308 or smaller). If fi r- ing a large capacity caliber or magnum, move the front skyscreen about 16 to 18 feet from the muzzle. The instruction manual recommends you keep all your shots at least 4 inches above the top of the skyscreen to reduce the chance of shooting one. Should you have an “oops” with a shot and hit a skyscreen, you can buy a replacement for $35.95. Be sure you always wear eye and ear protection when shooting. The keypad layout has nine but-
tons that control a number of functions, providing the user with an incredible amount of fl exibility over information. Power Button: turns power on
or off.
Change Units: from feet per sec- ond to meters per second. Scroll Left: when in Stats Mode
and Edit String Mode to decrease shot number.
Scroll Right: when in Stats Mode
and Edit String Mode to increase shot number.
Adds Data to string: lets you add
data to an existing string when in Edit String Mode. No command: can be depressed
if you choose not to delete velocity or string or clear all. Enter Edit String Mode: allows
editing of recorded velocities in selected shot strings. Delete Data in string: deletes cur-
rent velocity recorded or delete any recorded data in any shot string. Yes command: is used when delet- ing velocity or string or clear all. Enter Stats Mode: displays statisti- cal data for a selected shot string. Clear a selected string: will clear all data within a selected shot string. Delete all recorded data: will clear all recorded data within all shot strings.
Page 30 Winter 2012
The assembled skyscreens and housing fi t on a tripod and should be placed about 10 feet (or more) in front of the control unit.
Accept results: will select desired
shot string, accepts the results in the stats mode. Starts new shot string: will start a new shot string. The Display Unit “…allows the
user to easily review statistical data and review or edit recorded data at any time during operation.” Such data can include high velocity, low velocity, average velocity, extreme spread, and standard deviation ... the most useful data a rifl e shooter needs and always should record. As long as you don’t fi re more than 100 shots, your data is there within the unit ready for you to access it whenever you need it ... whether you are still at the shooting range or have returned home. There is even more to the RCBS
AmmoMaster Chronograph than what I’ve covered, but I won’t try to go over everything within this article. If you need (or simply want) a chronograph, this unit deserves your careful consid- eration. I don’t think you can go wrong. It offers a myriad of features at a price that’s quite reasonable.
CONTACT RCBS
605 Oro Dam Boulevard Oroville, CA 95965 Phone: 800-533-5000 Web:
www.rcbs.com
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