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Garmin hiccup

6.5 forever

Silver $$ Contributor
I love this speed machine!!
But today I am scratching my head. I am ready to break into a new powder lot. I loaded up 5 of my current charge weight to see if the velocity was close before I loaded more. EVERY shot was exactly 11.3 FPS slower than the previous shot???

I then fired 10 shots of my current powder charge. All was well with a SD of 4.1.

Anybody seen anything like this?
 
Since the new 5 rounds were made up from a newly opened bottle it is possible that the new bottle's powder composition may be different than the old batch.
Was the placement of the Garmin the same throughout both strings?
i'd try another 5 to see if it repeats itself and/or turn off/on the Garmin to let it reset itself before shooting the next string?
 
Since the new 5 rounds were made up from a newly opened bottle it is possible that the new bottle's powder composition may be different than the old batch.
Sure, that is the reason to check every new lot. But to drop exactly 11.3 fps for each shot is puzzling.
 
For clarification, the load with the old powder was shot before AND after the new powder load and they were normal.
 
Baffling! As said above the odds of that are remote. Were you reading velocities on the display or on a smartphone? If it does something wacky like that again, I suggest you take pictures or screenshots and send it off to Garmin. Don't settle for less than a replacement. I'm betting it doesn't happen again, but it would make me suspicious of the thing. FWIW, I love mine. Never had hiccups that weren't pilot error. Like shooting before it resets, or selecting the wrong velocity range. I reckon most of us Garmin-o-philes have done that before.
 
Baffling! As said above the odds of that are remote. Were you reading velocities on the display or on a smartphone? If it does something wacky like that again, I suggest you take pictures or screenshots and send it off to Garmin. Don't settle for less than a replacement. I'm betting it doesn't happen again, but it would make me suspicious of the thing. FWIW, I love mine. Never had hiccups that weren't pilot error. Like shooting before it resets, or selecting the wrong velocity range. I reckon most of us Garmin-o-philes have done that before.
They were read after the series was ended on the Garmin. Verified on the phone. I'm wondering about doing a factory reset on it. Has anyone done that?
 
A factory reset may be worth a go. If the problem doesn't easily repeat, there's no way to know if it fixed anything. Still, it's easy enough to do. I've done it a couple of times. I had been messing with setting when I first got my Garmin and wanted to go back to square one.
 
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Only thing you have for diagnostic information is the 11.3 fps drop each shot for several shots, that could mean something to a SHARP tech. But more likely a programmer. Hard to get programmers in the loop if it wasn't/hasn't been a reoccurring issue. Not just Garmin but any large company.
 
They were read after the series was ended on the Garmin. Verified on the phone. I'm wondering about doing a factory reset on it. Has anyone done that?
Hey Feller.. for what it's worth, I have had mine do a trick like that when I inadvertently got on the wrong side of the velocity setting. The little feller DON'T LIKE the area between 1650 and 1750fps drives me nuts trying to work up carbine loads with the handgun calibers. I also spent a day moving it around different places on my rest before discovering that I needed my bifocals to see the settings and was trying to get velocity on my bra with the velocity setting on the low side...... John
 

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