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Chronograph recomendations

 
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  #15  
Old 05-16-2008, 02:15 PM
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Location: Chatham, VA
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Quote:
Originally Posted by 4xforfun View Post
I would go with the CED....But....Go with the IR setup right away. I didn't. I have been having some issues with mine. One day I am at 3040 with an 11 fps ES and a SD of 3 or 4. Next time....same load....2960, and am still showing a low es and sd. Last time out....2840, with great es and sd. They sent me another processor and a pair of sensors. I went out today and set them both up and shot 2 sets of 25 shots. I used a .22, simply because of the expense and cost in $$$ and time shooting match loads. After the first 25 shots I simply switched the leads around so each processor used the other set of sensors. Results.....I got the same reading on both tests, with the exception that there is a 8 fps loss from the front sensors to the back on each test. Same es, same sd. I went through shot by shot and they were all the same, except for that 8-9 fps difference due to sensor location.This test tells me, along with what the head man at CED tells me....there is nothing wrong with my equipment. It is strictly a lighting issue. You eliminate all lighting issues with the IR setup. I have a friend who has done very well in 1000 yd competition who had the same problem...untill he switched!!!! Now, all is right with the world (for him, anyway) I had some other brands, and although they worked fairly well in most lighting conditions, the always gave me erratic readings, with "fliers" which would be 50, 60, ...100 fps off. :mad: Is it possible for the readings to be correct and that there are actual "fliers" in the string? NO!!!! Not a chance. That may sound a little arrogant to some but oh well. :o What can I say...I'm a perfectionist.

And like was posted earlier....it tells you everything you need to know, and is simple to run.

Just my .02 worth.
Going from 3040 to 2960 could, I think, be a function of temperature differences, primer lots, powder lots, bullet lots...or the combination of all 3. If all of those things were exactly the same, then light may well be the issue.

I bought the IR kit at the same time that I bought my CED...I have only used it twice. The first time was just to see that it worked, the second was just to prove the idea that you could Chrono in the dark (you can). Unless you know you are going to chrono in fairly dark conditions I would say save your $$ and try the chrono without the IR kit first. If you do buy the IR kit, be sure and buy the battery pack to power it as well...otherwise you need a place to plug it in near your shooting bench.

The only downside I have found is that if you use the IR kit in very bright daylight you can actually have so much light on the sensors that you cause errors.

One thing I would really like to do, is build a "coffin" for the chrono sensors to block out all daylight and use the IR sensors so as to take out light as a variable entirely.
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  #16  
Old 05-16-2008, 03:50 PM
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Join Date: Jan 2008
Location: Dallas, Texas
Posts: 130
Chronographs

I have the CED Millennium M2. It works great.
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  #17  
Old 05-16-2008, 11:58 PM
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Join Date: Oct 2007
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[quote=Forester;207167]Going from 3040 to 2960 could, I think, be a function of temperature differences, primer lots, powder lots, bullet lots...or the combination of all 3. If all of those things were exactly the same, then light may well be the issue.

You forgot about the 2840. I was using the same box of bullets, primers, and same pound of powder. The temp range was from 58 to 64. The only difference was the lighting conditions. I have talked to Charles Hardy, who, from what I can gather, is very high on the food chain at CED about this several times. He is the one who, without knowing me from adam, with no payment or credit card numbers, just a guy on the phone, sent me the second set of sensors and another processor to try. He has about eleventeen times more knowledge about this stuff than anyone I have ever talked to. He insists that the better, or more accurate, or more sensitive, the sensors are as far as processing accuracy, the more different lighting conditions affect overall readings. The es, av, sd....should be all the same, but the over all speed might be different. Just like my readings. Good numbers as far as es, av, ect. Just the AV changes. I Finlay got it into my thick skull....IT'S THE LIGHT...STUPID..:o

I just read the above and it is obvious that I can't explain it like Mr Hardy. But I am convinced that the IR setup will work very well, simply because when I do my load development (which is why I need it) I like to shoot later in the evening, when the wind is down and the mirage is minimal. Cloudy, calm days also work well also.
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  #18  
Old 05-17-2008, 03:03 AM
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Join Date: Feb 2005
Location: Nevada
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Forester,
I like the coffin idea... Not bad at all! Though I have never had any problems with mine; as long as I understand the effects of light and where
not to position it I may live without a coffin.
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  #19  
Old 05-17-2008, 07:54 PM
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Join Date: May 2003
Location: Missouri
Posts: 50
Another +1 for CED.
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  #20  
Old 05-17-2008, 08:46 PM
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Join Date: Aug 2006
Location: corpus christi tx
Posts: 424
i forgot my ced sitting on a picnic table at the ranch for a week. it got rained on hard two days about 3 inchs of rain and the temps where up to 100degrees. i changed the battiers and it worked fine going to use it tommorrow as a matter of fact
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  #21  
Old 05-17-2008, 09:30 PM
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Join Date: Dec 2006
Posts: 341
I have a Shooting Chrony and it is off by about 100 fps in all conditions. I guess you get what you pay for.
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