No u don't. You can do your load development with the MS attached and then adjust your scope afrerward.
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LabRadar vs. Magnetospeed
- Thread starter bgouin
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No u don't. You can do your load development with the MS attached and then adjust your scope afrerward.
Just to chime in with my $.02 ... I have a Magnetospeed V3, and it effects the point of impact and the accuracy of my loads. I shoot relatively thin barrels (#4 contour and smaller) and my POI shift is considerable... usually about 4-6 inches at 200 yards. Accuracy goes down significantly as well.
I wouldn't expect anything different. Browning put their BOSS device on the muzzles of their rifles primarily to allow owners to tune their rifles to the best accuracy for their loads. Not to change the point of impact. Folks that state the Magnetospeed doesn't affect accuracy have no basis to claim their findings apply to any rifle other than their own. And only then after they've fired enough rounds both with, and then without, the Magnetospeed attached to document their conclusion.
I think it's intuitive that the lighter profile the barrel, the greater the affect the Magnetospeed will have on both accuracy, and POI.
MudRunner2005
Well-Known Member
You need to re-read my post... I said that "I" do it this way, not that anyone HAS TO.
That being said, ANYTHING that touches your barrel, or is hanging on the end of your barrel affects barrel harmonics and POI. That's why we free-float barrels.
So I prefer to do my load development the way I described to eliminate ANY outside forces acting on the barrel to affect the outcome of my load development or so show any false proofs.You need to re-read my post... I said that "I" do it this way, not that anyone HAS TO.
That being said, ANYTHING that touches your barrel, or is hanging on the end of your barrel affects barrel harmonics and POI. That's why we free-float barrels.
I too do my load development and then check velocities and SD's
I have a pretty good idea of what velocities to expect from the load data.
I want to know how it is shooting without that thing hanging on the barrel. That is the way I will be shooting it after load development.
I just received my LabRadar the other day and I also have a Magnetospeed v3. I wanted the LabRadar so I could set it up and shoot for the day and read all (at least most) my shots for a very large sample size without the POI change from the MS. I also won't have to monkey around with moving the MS from rifle to rifle. Don't get me wrong, I love the MS but it's basically for reading velocity and then putting it away. With the LabRadar I can set it up and forget about it and still get readings.
So far I've only played around with it in the yard with my suppressed 22/45. I had to change the trigger to doppler since the pistol is so quiet it never triggered the microphone to take readings. As to the question about it picking up another shot from a nearby shooter I can't comment except that there are four sensitivity settings. I assume one could dial it down but I can't say how well it would work at a range with lots of shooters.
The fact that I could get it to read a suppressed .22 at 900 fps is pretty cool. My MS never picked up the .22. I can't wait to get it out with the big suppressed rifles.
I'll be selling the MagnetoSpeed here pretty soon I would guess.
So far I've only played around with it in the yard with my suppressed 22/45. I had to change the trigger to doppler since the pistol is so quiet it never triggered the microphone to take readings. As to the question about it picking up another shot from a nearby shooter I can't comment except that there are four sensitivity settings. I assume one could dial it down but I can't say how well it would work at a range with lots of shooters.
The fact that I could get it to read a suppressed .22 at 900 fps is pretty cool. My MS never picked up the .22. I can't wait to get it out with the big suppressed rifles.
I'll be selling the MagnetoSpeed here pretty soon I would guess.
The LabRadar is sounding like the way better option, for my preferences and uses. It needs to provide additional flexibility and benefits in use, because it costs more than twice the Magnetospeed. Reading that they're working some of the bugs out of the design based on early use feedback is also a positive.
bigngreen
Well-Known Member
The Poi change seems to have its source from the reflective gas from the bayo not from mounting. I have not seen an accuracy change in a lot of rifles but I do see a poi change on some, the worst one I own is my 308 in a 26 HV taper so tapers does not correlate to poi change from what I've seen but it also does not have a brake so more gas volume at the bayo, vs most of the braked rifles I shoot.
Wondering; what barrel contours are you shooting?
I've seen 5 rifles shoot with my magnetospeed on the barrel The only thing that shifts is the POI and it does vary according to rifle.
Mine shot 4 inches high and left with the sporter bayonet on the barrel but the accuracy was the same with the bayonet off.
For me it's pretty simple, shoot three with the bayonet on to check speed. Let barrel cool and move up to the next load shoot repeat, then the next load.
Once I find the speed I want and accuracy with no pressure signs I remove the bayonet and try to zero.
It's really this simple. Some are making this out to be much harder than it really is.
That's exactly how I use it.
You need to re-read my post... I said that "I" do it this way, not that anyone HAS TO.
That being said, ANYTHING that touches your barrel, or is hanging on the end of your barrel affects barrel harmonics and POI. That's why we free-float barrels.
I did read your post. But all I'm saying is u can do load development with the ms on because while it affects poi it does not affect group size. And doing load development with it on gives you more data.
