Ballistic Chronograph
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I've got a Chrony, a Magnetospeed, and I recently picked up a Labradar. Like everything else, each system had strong & weak points. So far I like the LabRadar best. Sadly, the 25 year old Chrony is condemned to the nether regions under the loading bench.
With the Labradar, you will have to position it in front of your can if you are shooting supressed. Even in front of the can it will still miss shots occasionally. I went back to my magnetospeed v3
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DaSouthernYankee
Well-Known Member
That Labrador looks bad ass but holly crap is it expensive! I use a pro chrono and it's been accurate enough for me to dial in shots out to 800 yards with 5.56 hand loads. I will have a magnetospeed some day tho but will still use the other chrono for my pistol loads.
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It triggers on the pop from the muzzle. There are guys that use them during our matches for data. It will register the rifle it is inches from and not one firing 3-4' away from it.
On an unsupressed rifle you set it a few inches to the side from the front of your muzzle.
Supressed I would have to set it 10-12" in front of the can and 2-3" to the side to pick up shots.
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TheBigRServices
Well-Known Member
I've also been looking at a new chronograph. My "shooting chrony" doesn't give the accuracy I need for the type of load development I want to do. So is there a significant difference in the accuracy of labradar vs magnetospeed? I also see there are two different versions of the megnetospeed with a significant price difference. Which features do you find yourself using of the more expensive one?
The Ladradar and magnetospeed are both extremely accurate.
Get the magnetospeed v3 if you are looking to use it on a suppressor.
Sporter version works just fine on barrels from 1/2 - 1". Anything over 1" you will need the v3.
Also, the XFR adapter hooks the v3 or sporter up to your phone so you can email yourself data.
Downside to that is if you have a new iPhone 7 without the headphone jack you will have to buy the headphone/lightning adapter from apple so it will work.
Just to note, you mentioned load developing.
I don't do load development with the magnetospeed bayonet on the gun. It can change barrel harmonics.
I do my load development then use the v3 to confirm what I am seeing in the groups.
Yes, as the Magnetospeed mounts to the barrel it will alter the harmonics while the LabRadar wont. But it will clock some bullets that the LabRadar wont. With the external microphone I was able to get the LabRadar to trigger with a .22 rimfire, but it couldn't track the bullet (concave base gives too small radar cross section). However the LabRadar tracked .30 bullets out to 150 yards, no other system can do that. All depends on what you want. Or buy both!
BTW, for the LabRadar there is a sight that you can 3D print that makes set up a breeze!
BTW, for the LabRadar there is a sight that you can 3D print that makes set up a breeze!
TheBigRServices
Well-Known Member
thanks, I have done ladder tests in the past to select my powder charge, but been reading about people doing the same thing with only velocity readings and finding the flat spot in velocity and then verifying that it groups good. 6.5 guys has a video I thought was interesting. Going to try to convince my wife to swing by interstate and pick one up. 
(looks like fingers crossed to me)
(looks like fingers crossed to me)thanks, I have done ladder tests in the past to select my powder charge, but been reading about people doing the same thing with only velocity readings and finding the flat spot in velocity and then verifying that it groups good. 6.5 guys has a video I thought was interesting. Going to try to convince my wife to swing by interstate and pick one up.
Great folks at Interstate.
They will take care of you for sure.
Barney88PDC
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For rifle Magneto Speed is the way to go and as Mickey stated take it off for determining best group. I've had some barrels and rifles where it didn't seem to matter and others it most certainly did. I know the video you're talking about on 6.5 guys and Scott is a trusted source and like they said both methods seem to work and arrive at the same conclusion from a different angle.
Last weekend we literally took a magneto and got the velocity of some bullets that we did not know the BC of as I think they are new. We shot them at 400, 600, 700, 775 and 925. We wrote down the corrections needed at those distances and put in the atmospheric data into Applied Ballistics on my phone. I input the MV the Magneto gave us and adjusted the G7 BC until the DOPE in the program matched up perfect with real world results. Took that to the match the next day and did very well. That is the backwards way of doing it being we didn't have a BC. If you are shooting a bullet who's BC can be trusted like Berger you literally can just confirm zero at 100, get the MV from the Magneto and you are good to go.
Last weekend we literally took a magneto and got the velocity of some bullets that we did not know the BC of as I think they are new. We shot them at 400, 600, 700, 775 and 925. We wrote down the corrections needed at those distances and put in the atmospheric data into Applied Ballistics on my phone. I input the MV the Magneto gave us and adjusted the G7 BC until the DOPE in the program matched up perfect with real world results. Took that to the match the next day and did very well. That is the backwards way of doing it being we didn't have a BC. If you are shooting a bullet who's BC can be trusted like Berger you literally can just confirm zero at 100, get the MV from the Magneto and you are good to go.
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TheBigRServices
Well-Known Member
Picked up the magnetospeed sporter the other day, I think it should do everything I need. I got a couple rifles I need to finish before I use it to work up new loads.
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I appreciate this discussion guys. I want a chrono too but just didn't know which one to go with.
I tend to be very conservative on my load development for my 6.5 Grendel ar's because reading brass for a gas gun is a bit more difficult. I don't push it because I have read that some powders will spike suddenly. With a chrono I can watch the velocity and safely look for that next node.
I tend to be very conservative on my load development for my 6.5 Grendel ar's because reading brass for a gas gun is a bit more difficult. I don't push it because I have read that some powders will spike suddenly. With a chrono I can watch the velocity and safely look for that next node.
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