CED M2 Chronograph Review By Bryan Chatwell

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[JohnT]

Re: Millennium Chronograph Versus Pact MK IV Timer & Chronograph
Thanks Brian for the review.

I have the CED Mk1 chronograph and in general pretty happy with it and its ease of use. I have compared it with a friends Chrony (cause how does one really know that it is calibrated correctly???) and surprisingly the Chrony reads so close to the CED as to be identical, but the Chrony is much more critical of where the bullets passes over the skyscreen.

However, I do have 1 problem with the CED and was wondering if anyone has experienced the same or has some solutions. If on a hot clear day after a period of time my CED gets what can only be termed as "sunstroke". It will take readings from shots fired 2 to 4 lanes away. Usually really low readings like 1240fps for rifles anything from a .223 to a 300 Mag. When I put my own shot through and it may be a 30-06 say, it will similarly give a low reading in the 1 thousand fps. Now why I diagnosed it as "sunstroke" I found out that if I take the screens in to a covered area out of the sun for say 30mins & then put it out again, it will read as normal again.

Have spoken to the local distributor in Australia and even considered a switch to the Mk2 version and was told the new one was susceptible to the same thing maybe more so as the sensors were supposed to be better and therefore more sensitive.

Regards,
JohnT
Sydney, Australia

PS. I think I incorrectly posted this into the thread on CED vs Pact MK IV so I have reposted on this review thread.

[Eaglet]

JohnT,

that really is interesting. I have had two CED Millennium Chronographs and I never had that happen to me. Now I have the M2 but have not used it yet. I know the M2 will function in a range of 0°F to 120°F and I would think that even when the outside temp is not that high from just standing in the sun the sensors would easily get cooking that hot.

Interesting!

[JohnT]

Eaglet,

Maybe its the Australian Sun but my friends Chrony ( I think he has the Beta model if that is the one with the remote screen) fails to read or gives error readings when they are side by side.

Whatever is the cause it's a PITA! I will try next time to cover the screens during target changes and see if that prolongs the period when it will function. It does seem to happen more often when the sun is high in the sky.

The temp last week was only 82F or 28 C but it still happened after about 2 hours. Temp may be part of it but perhaps not the sole reason for this problem. I have heard from the people at RSI that they have used it at 100F in Arizona and no problems. I thought mine was a dud until the Chrony chronographs did the same.


regards
JohnT

[Len Backus]

I just started using mine and love it! I used to have an Oehler and it was good. But this one is more compact and easier to take to the range. I love the big digits on the screen.

The owners manual warns about trying to use it over highly reflective snow and there was such a problem in sunny conditions. But when I moved it a few feet into shade it functioned perfectly.

Very satisfied.

[rvander1]

Hello Bryan,
I have a CED M2 Chronograph and I like it.
I am now using it to check on loads developed for 1000yd benchrest competition at williamsport. I can't find anywhere in the Crono literature just what the accuracy of the CED M2 is. For example, is it +/- 1%? This is important for me because at 1000yds, one needs very consistant muzzle velocities. The targets I'm getting at 600yards suggest my muzzle velocities are very tight- but the Chrono gives me a fairly wide ES and SD--- do you know the inherent accuracy of the instrument?
Thanks,
Bob