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CED M2 Chronograph Review By Bryan Chatwell

 
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  #50  
Old 11-17-2010, 03:07 PM
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Location: Melbourne Australia
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Re: CED M2 Chronograph Review By Bryan Chatwell

Bought one of these CED M2 chronographs three weeks ago and have had no problems with mine. Just make sure you use a new battery every time you set it up.
When I first set it up I did experience some extremely high readings because the unit too close to my big booming 30-378 & 338-378 Weatherby Accumarks.
It actually recorded speeds of 3900+ fps for both which we all know is impossible.
I moved the unit further away to the maximum length of the cables and was back to sensible velocities.
My previous chronograph was a Chrony which although it "served me well" it did however tell quite a few lies.
The accuracy of both of my rifles is excellent but the recorded E.S. on the Chrony was far too high for those E.S. readings to be true.
The Chrony also recorded speeds which were at least 100 to 125 fps higher than those recorded in reloading manuals.
Also throughout the morning the Chrony recorded erratic speeds for my 338-378 pushing the 300SMK pill from an average of 2830 fps to 2850 fps and then up to 2890fps with E.S. varying from 72fps to 125 fps.
The CED M2 recorded speeds that were more realistic and reflected what the reloading manuals stated.
I neck anneal all my cases after each shot, weigh and batch my cases, trim them to length and load carefully weighed charges of powder which are first thrown and weighed through my RCBS Chargemaster and then a second check is performed on my beam scales.
The CED M2 chronograph now records my E.S. for my 30-378 at 7 fps and for the 338-378 it is 12 fps.
The 30-378 delivers 3 shot groups of under 1/4" and the 338-378 is good for 1/4" to 3/8".
For accuracy and consistency I can certainly recommend the CED M2 chronograph.
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  #51  
Old 11-20-2010, 11:24 AM
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Join Date: Dec 2007
Location: N.W. Kansas
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Re: CED M2 Chronograph Review By Bryan Chatwell

I purchaed one of these & have had nothing but trouble with it. It continually gives "error code" I called the manufacturer, they sent me a new sensor, same thing. I have moved it to the end of the cables & shot several rifles through it, still error codes. New batteries, IT seems to do better on overcast days then sunny.

The manufacturer sent me 2 magaizines with articles on how to set it up. His best suggestion was to build a chrono box. I have been using off bi-pod. A chrono box is a long square box that would house of have the unit inside with triangle holes on each end. Then an indcadescent light inside. Not very feasible, no electricity for light, have to have a table to set the box on, etc.

I though one was supposed to be able to shoot through these while developing accurate reloads & best grouping. The manufacure told me it was more for just measuring speeds.

I have not been impressed at all & thoughts or help on set up would be appreciated.
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  #52  
Old 11-20-2010, 05:57 PM
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Re: CED M2 Chronograph Review By Bryan Chatwell

Quote:
Originally Posted by Siggy32 View Post
I purchaed one of these & have had nothing but trouble with it. It continually gives "error code" I called the manufacturer, they sent me a new sensor, same thing. I have moved it to the end of the cables & shot several rifles through it, still error codes. New batteries, IT seems to do better on overcast days then sunny.


I have not been impressed at all & thoughts or help on set up would be appreciated.

Without implying anything or sounding rude but I was just wondering if you may have possibly inserted the two screen input cables the wrong way about into the display unit.
Once again.....no offence meant here as I am just trying to help out here.
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  #53  
Old 11-21-2010, 08:41 PM
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Join Date: Aug 2010
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Re: CED M2 Chronograph Review By Bryan Chatwell

Siggy
I have the CED M! and it to would give me errors when testing my 223 Rem 700. I had not shoot in over six years until just a couple months ago. My M! would not register unless a bigger caliber round was fired thru it. After realizing that lack of sunshine was my problem I bought the infarred kit and that was all it took . Now everything is fine. I hope you get things worked out soon.
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  #54  
Old 11-21-2010, 11:24 PM
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Join Date: Apr 2005
Location: Alaska
Posts: 3,344
Re: CED M2 Chronograph Review By Bryan Chatwell

Still, there's something wrong with the chronograph - IF the Infrared light kit is required in order to get it to work. That would be my opinion. Otherwise CED better start notifying consumers that they'll need to purchase the infrared light kit at the time of the initial purchase.
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  #55  
Old 11-22-2010, 02:21 AM
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Join Date: Nov 2008
Posts: 202
Re: CED M2 Chronograph Review By Bryan Chatwell

I have had problems with every chronograph I have used now. Including CED, and the company basically will admit eventually, that if it is not perfectly sunny and sun directly overhead not even at a great angle, the IR screens are needed, on a cloudy or overcast day, they do not expect their chronograph to work...
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  #56  
Old 11-22-2010, 09:21 AM
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Join Date: Jun 2008
Posts: 5
Re: CED M2 Chronograph Review By Bryan Chatwell

I bought a CED M2 about 3 years ago, and used it occasionally-- and had frequent error codes (missed first sensor or second sensor etc.) I did some reading and bought a new heavy bi-pod and all the errors disappeared. I had originally used a light plastic Silk bi-pod, and got rid of that and bought a used heavy (8 lbs) camera bi-pod-- and now the M2 works great.
If anyone is having trouble with errors, make sure you have a stable base for the sensors-- a heavy bi-pod works for me.

--Just my 2 cents- hope this helps.
Bob
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