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Shooting Chrony Gamma Master Chronograph with Ballistic Chrony Printer

Product #: 331656
| Manufacturer #: 18
Status: Available
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Measures the speed of bullets and other projectiles from 30 to 7000 feet per second. Mounts on any tripod or it can be placed on a table. Runs on one 9 volt battery (not included) for 48 hours of continuous use. Includes the Ballistic Chrony Printer and features a 500 shot memory divided into 50 numbered strings of 2 to 10 shots each. Measures and stores shot velocities and time-elapsed between shots, and a timer mode measures up to 1800 rounds/per minute.

Summary of Features/Capabilities:

  • Uses one 9 volt alkaline battery (not included) for approx 48 hours of continuous use.
  • Mount onto a tripod or place on a table.
  • Has a large LCD-readout, 0.5" high.
  • Has an adjustable size, triangular shooting area from 8"?8" to 14.5"?14.5". The sides of the triangular shooting areas are made of wire-rods; the top of the triangle is formed by a 2-1/4" wide x 1/8" thick strip of tough, Hi-density polyethylene plastic.
  • The LCD-readout and most of the Electronics are located in a separate, small housing, the Control Monitor, connected to the housing with a 16 ft. telephone cord. This brings the LCD-readout right up to the shooting bench. The Control Monitor also functions as a Remote Control.
  • Gives numbered shot velocities and velocity stays on display until you shoot again.
  • Measures High, Low and Average Velocities, Extreme Spread and Standard Deviations.
  • 500 shot memory (divided into 50 numbered strings of 2 to 10 shots each).

    Dimensions:
  • Measures 7-1/2" long, 4-1/2" wide, and 2-3/4" high when folded.
  • Weighs less than 2-1/2 pounds.
  • Made of 20 gauge steel.

    Accessories Included:
  • Shooting Chrony Ballistic Printer: Prints on plain paper, comes with 16 ft. interface cable and runs on 4 batteries (AA, 6V), included and connects to the Chrony with a cable.

    Other Accessories:
  • Can be switched off, taken home and switched on for reviewing, information retrieval or, (together with optional IBM Interface, not available from MidwayUSA) downloading onto your computer
    Moves instantly from string to string, interrupts shooting on any string without memory loss, each string delivers its own statistics, etc

    Notes:
  • Three year limited warranty
  • Demo software included is not compatible with Windows XP
  • Not for use with Neon or other flourescent lighting, as they flicker at twice the AC frequency and cause false readings.
  • For indoors, a light-diffuser and an incandescent light source must be located above each photo-sensor. Use an Indoor Shooting Light Fixture, product #432880.

    • Application Charts & Information

    Overall Rating:
    3.6 out of 5
    Used this Product?Rate It
    5 stars
    David Sheets of Deltona, FL
    Date posted: 11/26/2007
    I love this Chrony, and would honestly have to look hard for faults. I also have the ballistic software and PC cable which allows you to use a notebook for your display. Data goes directly to the PC after every shot is registered. I love that feature.
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    5 stars
    Tim Joseph of Pasadena, CA
    Date posted: 12/11/2008
    I have started to hand-load for the 45-70 GOVT and this is one of the best tools I have ever bought. I read all the reviews here and did some other research on the net and decided to go for the top of the line. I'm really glad I did. I also bought a tripod (the Brunton here at Midway) and the Chrony carrying bag. All I had to add was a 9 volt battery and 4 AA batteries for the printer. It even came with a small roll of printing paper for testing but make sure you get more right away. I received it all late in the afternoon and set it up on the kitchen table so I could play with it before I went to the range. The manual was kinda hard to follow but I played around by passing my hand over the Chrony to get a data set and try out all the functions without fussing with the guns. The manual is also on Shooting Chrony's website so you don't have to worrying about losing it. I found the most important thing to learn was how to start a new string and how to clear all the data in the memory, the rest can be done with the pre-programmed buttons on the printer and I don't have any need right now for all the other bells and whistles. With the printer it is a simple matter to hit the one of the two "STAT" buttons after shooting a string to get a full print out of all the string data. The most interesting statistic is the standard deviation. The text that is on the printer face is like a cheat sheet for how the system works. I can see how frustrating it must be to use the system without the printer. GET THE PRINTER. In fact, while I'm writing this review I'm looking at the print-outs with notes I wrote right on the tape while I was shooting. It great if, like me, you always think you'll remember what happened without notes. One thing I did from an idea I read somewhere was to replace the metal guide rods with bamboo skewers - they were the perfect size without altering and gave me a little more confidence as a first time user blasting 400 grain full power 45-70 loads. By the way, the load was 70 fps below the recipe speed. It was no problem lining everything up using sandbags on the bench and the Chrony on a tripod. I was able to check grouping and speed at the same time. I did have a occasional problem with the first shot not printing but it would read out on the electronic screen and would print out when the STATs were printed at the end of the string. I think that's because the print-out function switches to NO-PRINT after a long pause like walking out to change a target and you have to toggle it back to PRINT and sometimes the first shot doesn't print. I'm hoping that one day Shooting Chrony will make a live link-up to a notebook computer with a real-time notebook control and readout but until then I'm still satisfied.
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    5 stars
    Kevin Russell of Columbus, IN
    Date posted: 6/5/2004
    The ability to print a record for each group is great. I shoot my group, press the STAT button on the printer and then staple the print out to the target. Since I don't use any of the more advanced features yet, I find set-up to be fairly simple and straight forward. It is a little sensitive to changing light conditions, but if you follow the directions, you should not have allot of problems. Buy the carrying case. Then you have a very compact package that is easy to take along with you. Throw in an inexpensive camera tripod and you'll have a system that gives you allot of value. I would buy it again.
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    84 found it helpful |
    1 did not
    5 stars
    Art Armfield of Alanson, MI
    Date posted: 11/1/2009
    Wife bought me this chrono several years ago for Christmas. I hated it, couldn't get shots to read, numerous problems and it is darn hard to operate, very complicated. I put it in the box where it sat for two years. Then the bug bit me again. Buy another chrono or give Chrony a call! I called Chrony after two years and explained my dilemma. They told me to send it back, I didn't hold much hope in these days of no customer service and we won't honor warranties......I was wrong. Chrony sent it back with two weeks with brand new electronics! After receiving the unit back and spending a good deal of time reading the manual again I set it up and it has worked flawlessly ever since. The hardest thing to remember is to move to another string when you shoot a new load and haven't shut the unit down. Also clearing the memory is a bear to remember and you have to have a notebook while shooting so you can remember what string shot what ammo but that's saying I cannot spend hours putting bullets through this wonderful machine and get some really great data from it.
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    5 stars
    Dean Goedde of Chandler, AZ
    Date posted: 3/24/2003
    This chronograph has never failed to read the velocity of a bullet for me, simply follow the directions provided. On the electronic display velocities over 1000 fps do not show decimal, but they do when printed on paper from the portable printer. For example, 3830.33 fps would be the printed value. I like the statistics that are calculated for each string, plus the ability to erase a single shot from a string. The memory lifetime is stated to be someting like 50 years, even with battery taken out. I like that a regular phone cord is used between the detector and the bench unit.
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    172 found it helpful |
    1 did not
    4 stars
    Kevin Reed of Annapolis, MD
    Date posted: 8/1/2007
    This unit seems to yield readings under conditions where other chronos I have owned have not been able to. But to be honest, the user interface is not very good. It feels like you are using a device that was developed in the late '60s. I am an electronics tech and I deal with instrument systems for a living. And yet I find that I have to keep referring back to the manual while I'm trying to concentrate on shooting. I do like the fact that it prints out all relevant data that I can staple to the target for load development. And as I said the unit works well under a wide range of conditions, but they really need to update the interface!
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    19 found it helpful |
    2 did not
    4 stars
    Mark Poole of Fayetteville, GA
    Date posted: 6/29/2005
    Very pleased with the unit and it's performance. Reads consistently, appears very durable. One word of caution though, if you need replacement parts (I did, my fault, don't ask)don't get in a hurry. Shooting Chrony only ships on Wednesdays, so if you call on Thursday, like I did, you're gonna wait a while for your stuff. Annoying.
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    38 found it helpful |
    2 did not
    4 stars
    Chuck B of Milaca, MN
    Date posted: 10/31/2009
    Along with several other raters, I too find the instructions must have been written by someone who absolutely knew little about clear and complete information. I also agree with the fussiness of the skyscreens and pick-up sensors. There are way too many 'err' printouts rather than bullet velocities. In a 10 shot string, my average is about 7 readings and 3 errors. That's unacceptable so I have to shoot 3 or 4 extra rounds to get a 10-string group for a more accurate average velocity, High/Low Velocity and Standard deviation. Three or four extra rounds per handloaded recipe can equal hundreds of unneeded shots in a year. I'll be looking at other chronographs at the range over the next few months to see if other shooters are happy with their varied chronographs.
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    4 stars
    Russell Smith of Oklahoma city, OK
    Date posted: 2/8/2003
    This chronograph does everything that it says that it will but is overly complicated. If I don't use it for a while, I have to refresh myself with it before I can use it again. This exact chronograph is not good for 'quickly' checking a load, it takes time to set up correctly. If they would have added a readout on the skyscreen section so that it could be used like the cheaper models, it would be the perfect chronograph. Overall, it is a good unit but I'm going to buy the cheap one also for quickly checking velocities when I don't thave the time or patience to set up this model.
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    144 found it helpful |
    10 did not
    3 stars
    Steven Shaw of Cave Creek, az
    Date posted: 1/31/2004
    I just bought a Gamma Master for Christmas since my wife buys socks and shirts. I read the directions 10 times and also took them to the range and find this a very nice rig, but the directions are about as useful as a nickel in a dime machine. It tells you If you have this type of chrony all you have to do is this, and if you have that type of chrony do that. It seems to me that you have to own and know how to operate different types of chronys before you even have a chance to use this one since this seems to be the upgrade. So, they refer back to the lesser value models for instruction comparison rather than just telling you how to run what you just purchased.
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    1 stars
    Eric Rogers of Bakersfield, CA
    Date posted: 10/30/2007
    I bought this chrono thinking it was going to be great with all the bells and whistles. I was sorely mistaken. I have taken it out a few times and have yet to get a full 10 shot string to register without error. Very temperamental when it comes to light conditions. Sky screens are useless. To get it to register any shots at all I had to basically build a box around it to block any direct light at all. I can't wait to get a new chrono (thinking CED II) so I can test this chrono's survivability rating vs a 223 or 308.
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    26 found it helpful |
    7 did not
    1 stars
    M S of Gilbert, AZ
    Date posted: 1/16/2009
    I bought this Chronograph about 2 years ago. At first I got several "error" read outs. In the last few months I got a majority of "error" read outs and very few actual actual chronograph readings. I poured over the confusing instructions several times and highlighted the important information. (I don't consider myself illiterate, I have had 9 years of college). I tried it again this morning with fresh batteries and precisely followed the instruction but to no avail. Out of a box of fifty 77 gr .223 BHA, I got 2 non-error readings. A little frustrating. I took off the diffuser covers and tried moving the line of fire up and down a little but still no improvement. I finally put a round through the front panel and the exit "wound" was in the back panel. Even that didn't improve the function. I would suggest that you do this with your first round so that you can save some money of your ammo expenditures.
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    5 did not
    1 stars
    Christopher Butler of San Diego, CA
    Date posted: 10/27/2009
    I bought this chronograph along with the infrared skyscreens, battery pack and case and sent it back two weeks later. I bought this chrony to do load development for various handgun and rifle calibers. After reading reviews here and elsewhere online I decided on the Shooting Chrony Gamma Master over the CED M2. Big mistake. My friend and I tried this product at two different public indoor ranges as well as outdoor on both cloudy and sunny days with and without the infrared screens attached and could not get a single reading no matter how many times we moved closer or further away. We even made a cardboard cover for it to further block ambient light, nothing. Next we tried it at my friends families private indoor range, shut off all lights except one 25 yds away and could still not get a single reading. As a matter of fact the only time it read a single shot was with an air rifle outdoors on a cloudy day with the infrared attached. Ridiculous. The quality of the unit was very poor in my opinion, it looked like something someone built in their garage, the stickers on the the printer that cover the buttons fell off, the printer was always randomly printing something wasting paper etc. The whole unit was a nightmare to set up especially in a public range with cables running everywhere etc. The manual is the most confusing and poorly written instructions I have ever read. Go to their website and you can check them out yourself if you don't believe me. They make no sense and we spent more time reading the manual and trying to manipulate the control unit then we did shooting. It is seldom that I write reviews on products but this machine cost a lot after you bought all the options for it and was totally useless to me no matter what we tried. I received my CED M2, took it to the range and it worked flawlessly with some 9mm, 45 ACP and .40 cal rounds I loaded and also functioned flawlessly with both my .177 .22 call and my buddies .25 cal air rifles. I would definitely recommend the M2, I wish I would have followed my instincts initially I would have saved on shipping and lots of time.
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