If you have a Chrony I came up with a way to make it better

[Wally]

I have a Alpha Chrony. I don't use the steel rods and top screen with it as I know if you hit a rod, you will damage the version. For years I uses plastic soda straws as a sighting guide, but my Chrony would only work reliably on an overcast day. I tried an opaque plastic "tent" ...but it would not hold up to the wind and muzzle blast. I noticed two sets of slots on the steel Chrony box--- I fashioned a piece of corrugated cardboard to fit and cut out a "V" slot in it as a "guide". The width of the cardboard allows it to have a one inch edge on each side that I bent like an "L"...one can use masking tape to connect to the Chrony box. On the top of the now U shaped cardboard I stapled a 2" strip of opaque plastic milk jug plastic that works to stabilize the cardboard and makes a sky screen. I can now use the Chrony in bright sunlight. Sadly I cannot attach a photo as the insert image function on this website I have yet to master....I am a cut & paste person. In closing---Chrony should have developed this long ago, but I guess that they like the steel rods so they can sell new ones.

[swheeler]

The very first Chrony I had, maybe F1- maybe just CHRONY, had black cardbord ends with an oval hole white letters marked scope and open sights, can't remember for sure but I don't think it had a diffuser top, you know 30 years ago.

[metricmonkeywrench]

Topic of these old models just popped up elsewhere

http://castboolits.gunloads.com/show...quick-question

Some replace the metal rods with appropriately sized dowels to allow for a better breakaway on the various chrony's

For the shooting Chrony (mine is red) a member sent me a scanned version of the original Oval hole "guides" and top diffusers. I glued a printed guide to a piece of heavy cardboard and cut the diffusers out of an old thin plastic cutting board.

[Wally]

The new ones don't come with that..I had mine for a good 20 years...they use a steel rod and a plastic diffuser cap.

[Mal Paso]

Shooting Chrony is out of business AFAIK.

[winelover]

Use to use bamboo skewers to replace the steel rods.


Winelover

[firefly1957]

My old one had the cardboard guides that were such a P.I.T.A. i tended to use it without which was a terrible mistake as I ended up shooting to low and killed it!
The old ones did have a diffuser of sorts it clipped into the cardboard.

Second time I used new one I clipped the steel rod it did not damage unit but I never found the top part of the rod in my lawn! I glued to bamboo skewers together and cut them to length and they work great!

I get some really weird readings with the new unit in direct sunlight I find a beach umbrella fixes the issue quite well .
One note on the new unit over the early ones some rounds have a lot of muzzle flash for instance my 10" Contender in 30-30 loaded with RE-7* would have to be over 50 feet away from early unit to get good readings ( 110 grain bullet at 2275 f/s @ 50 feet) . New unit 4 years old seems unaffected by flash so far .

* This was the older RE-7 that wad fine grains with red indentifers (not like red dot ) the current RE-7 looks almost the same as IMR-4227 and I have not loaded any in 30-30 but will have to work up any load all over again .

[ndnchf]

I too use the bamboo skewers. I added masking tape flags to the front set to give me the vertical location to aim for. hey work great.

[OS OK]

hahaaa...my first chrony...84 I think?
Anyway...I cut this triangle tube from some of those voting signs, plastic corrugated boxboard-I think is the name?
Cut 4 short wire stubbs that fit the chrony where the risers went & plugged the new sky tunnel into those stubs.
Worked like a champ...as far as I know it's still working fine, I gave it to a kid over in Missouri several years back.



The backstop, if you are wondering is a trash can filled with rubber mulch.

[MrWolf]

Use to use bamboo skewers to replace the steel rods.


Winelover

Same here. I got a Labrador but still haven't used it yet. Told myself I have to finish the pistol range first. I hate myself at times

[winelover]

You'll like it. The LabRadar retired my Shooting Crony.

Winelover

[uscra112]

Use to use bamboo skewers to replace the steel rods.


Winelover

Yupper! Very cheap and just the right size.

I ordered a sheet of translucent plastic from McMaster. Cut into strips with scissors it made a couple dozen screens. Milk jugs will also work but not quite as elegantly.

People malign the Chrony because the firmware is a little counter-intuitive. OK with me, people now give them to me. I have never shot a Chrony, but if I ever do I now have spares. I spent a small fortune on a LabRadar a year or two ago, but it's a LOT more trouble to make work than a Chrony, so it's gathering dust.

[BD]

I've been using this method, (bamboo skewers), for many years now. Only took one mistake to get me to see the light.

[rebeccamom]

Use to use bamboo skewers to replace the steel rods.


Winelover

Thank you for your advice....

[Mal Paso]

Here were my mods to increase reliability and because it was shot once a 1/4 inch thick deflector plate.

[1hole]

For nearly 30 years now, I've never shot my chronograph. On day one I cut two 4 inch high bits of cardboard I put at the bottom of the diffuser supports; if I can see my targets I can't hit either one of the screens.

[NEKVT]

I use my Chrony stock as it came. It all fits nicely in the original box that way. I also look both ways before I cross a street.

[Idz]

A fellow shooter told me "If you shoot your chronograph, you've got more problems than bullet speed spread"

[farmbif]

as other have experienced in the past, a gas check can put your chrony out business

[Electrod47]

as other have experienced in the past, a gas check can put your chrony out business

Wow, that's something to remember.