chonograph

[top usmc]

:-/Would someone please tell me, the basic parts needed to satisfactory measure speed. The Chorongraph from front top to rear with basic needs, and front to rear with helpfull, nice to have options. After playing with reloading for forty years and going by the load data, I have decided to find out for myself, FPS. Midway lists about as big an inventory on Chony's as any one.

Thanx GEORGE

[joe21a]

I think most of the chrono are quite accurate. Buy the best you can afford. Out side they all seem to work well as long as you use the diffuser, inside can be a different story and some times you need a light mounted over the unit.

[Richard]

I actually never use diffusers on my PACT chronograph. The only thing that gives me problems is when the sun comes into the photo cells on an angle. Unless the sun is directly overhead, the diffusers, being so narrow, will rarely work. The best conditions are when its cloudy. What happens, is the photo cell see the bullet passing in relation to the sky. When the sun peaks in, it cannot see the bullet and you get an crazy reading. I have put side shields on mine to keep the angling sun out of the photo cell.
At my range, the sun comes up from behind the building an then gradually comes around from the side. Its never overhead. Accuracy of a chronograph increases the further apart the distance of the photo cells. The Chrony is OK, but its one foot spacing is not the best. Obviously, two feet is better. When Oehler was making chronographs for the general public, they were spaced four feet apart. I have a friend in Louisiana who has his permanently mounted 24 feet apart.
Richard
Richard

[craigf]

I have a CED Millineum II and like it a lot. The nice thing about it is that I can download all of my shots to my laptop. I have them all on one big excel file.

[raf]

IMO all chronos work very well. What you get for extra money are extra features, more memory, remote displayes etc.

[orion]

I have used a the one called the chrony for years. I believe it is the beta model. It is relatively inexpensive and has worked great for me. If you buy one I would recomend the remote screen read out so you can read the results from your bench or where you fire from and so you can operate the machine from where you are shooting. Some ranges have long interludes between cease fires where you would have to wait to walk down to the machine and reset or start new strings. The screens can be read with binocs or scope but if you are running several shots or long strings, or multiple strings it is a nice feature.

[KerryB]

Like Richard, i use a Pact and i also don't use the diffusers. I appreciate the display that sits on my shooting bench too. I've never had a problem with mine and have owned it for several years............

[raf]

I no longer use the diffusers. Used to when I first got the unit but even at 10 feet the muzzle blast blew them off and then had to wait for all other shooters to stop to check targets before I could go out and replace them. It works just as well without them.

[boarhog]

I have an Oehler. I think the model is 33 without a printer. I have had problems with it showing error at times. I have attributed it to shadows or clouds , and have never tried it without the diffusers. Has anyone had experience using this model that way?
Boarhog

[mshm99]

I bought the least expensive Chrony F1 fifteen years ago. Not a problem since. I agree you get what you pay for, but in this case I got all that I cared to have. All I have wanted to know is the velocity of every shot in a string. Don't mind using a pen to write it down. If you want the cream cheese, go for it.

I have not seen anyone mention you will need a tripod.

Just my opinion.

mshm