Chrony question
- Thread starter KDX
- Start date
lineofsight
CGN frequent flyer
- Location
- Lower Mainland, BC
May also want to setup target close behind chrony (rather than aim 300m down range) to reduce your chances of shooting the chrony.
10-15' as stated earlier. Your diffusers will still shake pretty good even at that distance.
I shoot through mine at 500m. The distance the bullet travels has no bearing on whether you will shoot your chrony or not. You have just as much chance of shooting it at 50m or a mile, it's still only feet from the muzzle.
wapitiwhacker
CGN Regular
- Location
- East Kootenay B.C.
I agree with 10 ft. Sensors can be foiled by burnt gases etc. if placed too close. Something else you may want to consider is to change out your metal diffuser supports with wooden dowels. If the unthinkable should happen it could save some major damage to the unit.
I got a 340Wby too close to my Chrony once and vaporized the sky screens and the cover to the LCD screen...I think I was 5 or 6 feet away if memory serves. 
10 feet is good, 15 is about right with a big magnum.
Take your time and line things up right then (just to make sure) pull the bolt and look through the bore BEFORE you shoot.
I've seen more than one Chrony with its brains blown out!
Strikes my sense of ha ha every time.
10 feet is good, 15 is about right with a big magnum.
Take your time and line things up right then (just to make sure) pull the bolt and look through the bore BEFORE you shoot.
I've seen more than one Chrony with its brains blown out!
Strikes my sense of ha ha every time.
Checking ones scope settings at 500 yards before touching one off at the Chrony is well advised.
Not that anyone would ever would ever screw up a scope setting?
The sight of a Chrony tipping over shot to death has to be one of the funniest things I've seen....Can't tell you why that is?
Might be the look of embarrassment on the shooter face?
Checking ones scope settings at 500 yards before touching one off at the Chrony is well advised.
Not that anyone would ever would ever screw up a scope setting?
The sight of a Chrony tipping over shot to death has to be one of the funniest things I've seen....Can't tell you why that is?
Might be the look of embarrassment on the shooter face?
I use the CED Millennium so the brain (the expensive part) is no where near the bullet path. It's only a few bucks and wait time to get the replacement parts should the inevitable happen sooner than later.
There are 2 types of chrony owners:
1. Those who have shot their chronies
2. Those who have yet to
I am a 2 so far
I use the CED Millennium so the brain (the expensive part) is no where near the bullet path. It's only a few bucks and wait time to get the replacement parts should the inevitable happen sooner than later.
There are 2 types of chrony owners:
1. Those who have shot their chronies
2. Those who have yet to
I am a 2 so far
Yeah, just like pilots: "There are those who have landed gear up and those who will".
According to a recent article in "Rifle magazine", a bullet continues to accelerate for about 15 feet after it leaves the barrel, so you get the true "muzzle" velocity at about that range. This is contrary to conventional wisdom, but the author claims to have the proof and in fact explains it in the article.
Having the chrony out at 15 feet sure saves a lot of time picking up the screens and re-assembling them anyway.
I use the CED Millennium so the brain (the expensive part) is no where near the bullet path. It's only a few bucks and wait time to get the replacement parts should the inevitable happen sooner than later.
There are 2 types of chrony owners:
1. Those who have shot their chronies
2. Those who have yet to
I am a 2 so far
After nearly 20 years I have yet to shoot my Chony either....Yet.
I have yet to try my CED...Are you happy with yours?
Does it work in the sun?
I've only used a chrony the past three seasons, but I have yet to understand how one can shoot it.
I set it up in line with the target, I set my scope to the lowest setting, I make sure it clears, zoom back in and fire away.
When I do it with pistol I put the target right behind where the chrony will go. Shoot first to get a point of impact, set up chrony and maintain original point of aim.
But I could just be lucky.
I set it up in line with the target, I set my scope to the lowest setting, I make sure it clears, zoom back in and fire away.
When I do it with pistol I put the target right behind where the chrony will go. Shoot first to get a point of impact, set up chrony and maintain original point of aim.
But I could just be lucky.
Nonsense.
No other way to say it.
According to guys that have measured actual velocities the bullet slows roughly 1 fps for every for one foot traveled for the first 15-20 feet.
JBM actually gives you a correction for chronograph distance.
Yeah, just like pilots: "There are those who have landed gear up and those who will".
According to a recent article in "Rifle magazine", a bullet continues to accelerate for about 15 feet after it leaves the barrel, so you get the true "muzzle" velocity at about that range. This is contrary to conventional wisdom, but the author claims to have the proof and in fact explains it in the article.
Having the chrony out at 15 feet sure saves a lot of time picking up the screens and re-assembling them anyway.
That's exactly what I was saying a year ago or so on this board, everyone was laughing at me
Bullet is in fact still accelerating after it leaves the barrel...Thanks for all the replys. I was thinking about setting it up, sighting through the barrel at 10 feet or so (17 Rem Fireball) and just shooting into the dirt for 5 shots to get an idea of the FPS. It's a cheap caliber to shoot so I'd sooner be safe than sorry.
It is especially impt to ensure that you know where the round will travel. Boresight the rifle, then check to see if the chrony is is danger by removing the bolt and looking down the barrel. If you can't do this, zero your scope first, then chrony away. I have seen EXPERIENCED shooters have a brainfart on the range. I remember one guy who had just installed a new scope on a new rifle and was working up new rounds for it. He had gotten more involved in making the rounds than in finishing the scope mount. Got to the range, set up the target, set up the chrony, loaded the rifle, shot the chrony first round. I know another guy who had a bad scope and during the shoot, his MPI kept changing. getting lower and lower, he didn't pay any attention to it, just kept jacking up the elevation until he finally shot the club's chrony. It can happen and anyone who says it can't just hasn't been on the wrong end of a bad day yet. I have not had the privilege and don't want it because we laugh like hel! when it happens to others.
The muzzle velocity difference at the muzzle and 12 feet away is measured in single digits. I have never worried about it. If you want to try it for yourself, use a .22. Very little blast to damage anything and it will prove your point.
The muzzle velocity difference at the muzzle and 12 feet away is measured in single digits. I have never worried about it. If you want to try it for yourself, use a .22. Very little blast to damage anything and it will prove your point.
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'Actually' so do all the other good ballistic programs.
At least until recently. Perhaps scientific measurement has triumphed over fuzzy logic. Perhaps not. Time will tell.
