Muzzle speed Meter with tripod $28.92 @ AliExpress

[BackStop]

You are more than welcome Kerry as is everyone else who find it useful. Earl was also a big help to me when translating which helped with the accuracy of the translation. Thanks Earl!!

My thanks to Earl as well!

[Rabbit\Squirrel Killer]

I bought the tripod model because it was easier to use imo.

  SO, shooting/destroying the tripod model is almost a certainty over time.

I think anybody that doesn't have the confidence or the ability to shoot through the tripod model should probably get the clamp on one. Not saying that accidents don't happen just that with caution and paying attention should be fine to use the tripod model without shooting it in my opinion.

I think the real problem is when people try to shoot through these at a distance.   The margin for error is small enough that even a "flyer" pellet could destroy the unit.   Even the tripod model is not really designed for POI measuring at any usable distance.   Although it will work, the chances of hitting it grow exponentially with the distance from the muzzle.

They are marketed as "muzzle velocity meters", after all... (grin)

"A man's gota know his limitations" (heard in Clint Eastwood's voice!) One of my grandson that was 15 at the time shot the diffuser on my one of mine from about 4 feet while I was keeping an eye on him. I could tell ahead of time that he was going to hit it and said "stop" but he shot anyway. Luckily it was a low powered gun and it just dented the edge. Another time he was aiming right at the front but did stop, and I never let him shoot through it again. So, not everyone is just hitting them at distance!
 My daughter (his mom) told me yesterday though that he breaks every screen that he has anything to do with. His cell phones usually have a broken screen. About a month ago he broke two cell phones the same day.  He is clumsy and has attention issues too. That's a bad combination. On a Dirt Bike (including a YZ490) or Any Quad he is fearless and does crazy stuff and is really good at pulling it off. He seldom crashes. He has burned up a lot of motors on them (10?) though. A few weeks ago he road a Yamaha Warrior around on two side wheels for over an hour without going back to four wheels then the motor gave up. It seems as though the motor is not designed to oil/run at that angle only for such an extended period of time. To be fair they are all older when he got them, and he is getting good at rebuilding them.

[BackStop]

I bought the tripod model because it was easier to use imo.

  SO, shooting/destroying the tripod model is almost a certainty over time.

I think anybody that doesn't have the confidence or the ability to shoot through the tripod model should probably get the clamp on one. Not saying that accidents don't happen just that with caution and paying attention should be fine to use the tripod model without shooting it in my opinion.

I think the real problem is when people try to shoot through these at a distance.   The margin for error is small enough that even a "flyer" pellet could destroy the unit.   Even the tripod model is not really designed for POI measuring at any usable distance.   Although it will work, the chances of hitting it grow exponentially with the distance from the muzzle.

They are marketed as "muzzle velocity meters", after all... (grin)

"A man's gota know his limitations" (heard in Clint Eastwood's voice!) One of my grandson that was 15 at the time shot the diffuser on my one of mine from about 4 feet while I was keeping an eye on him. I could tell ahead of time that he was going to hit it and said "stop" but he shot anyway. Luckily it was a low powered gun and it just dented the edge. Another time he was aiming right at the front but did stop, and I never let him shoot through it again. So, not everyone is just hitting them at distance!
 My daughter (his mom) told me yesterday though that he breaks every screen that he has anything to do with. His cell phones usually have a broken screen. About a month ago he broke two cell phones the same day.  He is clumsy and has attention issues too. That's a bad combination. On a Dirt Bike (including a YZ490) or Any Quad he is fearless and does crazy stuff and is really good at pulling it off. He seldom crashes. He has burned up a lot of motors on them (10?) though. A few weeks ago he road a Yamaha Warrior around on two side wheels for over an hour without going back to four wheels then the motor gave up. It seems as though the motor is not designed to oil/run at that angle only for such an extended period of time. To be fair they are all older when he got them, and he is getting good at rebuilding them.

I guess I can't really say much.   If you could see all the scars on my head...  (chuckle/heavy sigh)

Of course, my head IS the hardest thing on my body!  LOL!

[Rabbit\Squirrel Killer]

I guess I can't really say much.   If you could see all the scars on my head...  (chuckle/heavy sigh)

Of course, my head IS the hardest thing on my body!  LOL!

It's just funny how he is clumsy and inattentive except when he is doing stunts.

[HunterWhite]

Some of us need adrenaline to function. 🤐

[Rabbit\Squirrel Killer]

Some of us need adrenaline to function. 🤐

I resemble that remark! I have always been an adrenaline junky.

[35 shooter]

Just bought one of these 2nd hand. It’s the tripod shoot through type.
May try it out late tonight.

Wanted something to chrono with indoors with my airguns... this should fill the bill!

[35 shooter]

I’m happy with this little muzzle chrony. Don’t have another crony to compare it with right now, but the numbers i’m getting certainly agree with the pellet drop I have all the way out to 50 yds.

I did have to back off a couple feet from it with my 880 and about 4 ft. with the 397 to get consistent readings.
I think the air blast was interfering at the suggested 4 cm distance.

I made sure how low I was shooting before shooting through the chrony at those distances though.
Had to aim toward the top of the little chrony to get it through the center at those distances... good thing I checked the drop first lol.
Seemed to be important to shoot through it on a level for consistency.
I did the best I could on that considering the way I had it set up I had to shoot kneeling resting one elbow on my knee.

All in all, very pleased with this little Chinese wonder!
Lol, best know your pellet drop and shoot with a “known” accurate rifle if shooting through one of these at much distance though!!
Think i’ll keep it up close with this one.

[mpbby]

Mine seems to need some warm up.. , after that, I think it's fine.

My last two strings just for a quick check about the spring (getting weak) and the piston seal (ES).

208, 215, 247, 248, 248

201, 240, 238, 241, 239, 238

[BackStop]

I don't know if this has been discussed, but it seems that the tripod models actually measure in tenths of a mps, while the clamp on models on measure in whole mps.

I know my clamp on model does not do tenths of a mps.

Maybe someone with the tripod model can verify?

[Earl]

I don't know if this has been discussed, but it seems that the tripod models actually measure in tenths of a mps, while the clamp on models on measure in whole mps.

I know my clamp on model does not do tenths of a mps.

Maybe someone with the tripod model can verify?

My clamp-on model shows 3 numbers.
If the velocity is under 100 mps, then it will read in tenths.
Examples:  95.4, 89.6, 97.8 then 103, 205, 125

Multiply the mps by 3.28 to get fps.
Examples: 200 mps x 3.28 = 656 fps
100 mps = 328 fps
200 mps = 656 fps
278 mps = 912 fps
   1 mps = 3.28 fps

[BackStop]

I don't know if this has been discussed, but it seems that the tripod models actually measure in tenths of a mps, while the clamp on models on measure in whole mps.

I know my clamp on model does not do tenths of a mps.

Maybe someone with the tripod model can verify?

My clamp-on model shows 3 numbers.
If the velocity is under 100 mps, then it will read in tenths.
Examples:  95.4, 89.6, 97.8 then 103, 205, 125

Thanks Earl!   I'll have to try that...   ...Yep!

I think the tripod model has 4 digit display.

[Rabbit\Squirrel Killer]

I don't know if this has been discussed, but it seems that the tripod models actually measure in tenths of a mps, while the clamp on models on measure in whole mps.

I know my clamp on model does not do tenths of a mps.

Maybe someone with the tripod model can verify?

My clamp-on model shows 3 numbers.
If the velocity is under 100 mps, then it will read in tenths.
Examples:  95.4, 89.6, 97.8 then 103, 205, 125

Multiply the mps by 3.28 to get fps.
Examples: 200 mps x 3.28 = 656 fps
100 mps = 328 fps
200 mps = 656 fps
278 mps = 912 fps
   1 mps = 3.28 fps

.305=1' so for rounding purposes just consider .3 a foot. I would just ignore the tens myself.

[BackStop]

I don't know if this has been discussed, but it seems that the tripod models actually measure in tenths of a mps, while the clamp on models on measure in whole mps.

I know my clamp on model does not do tenths of a mps.

Maybe someone with the tripod model can verify?

My clamp-on model shows 3 numbers.
If the velocity is under 100 mps, then it will read in tenths.
Examples:  95.4, 89.6, 97.8 then 103, 205, 125

Multiply the mps by 3.28 to get fps.
Examples: 200 mps x 3.28 = 656 fps
100 mps = 328 fps
200 mps = 656 fps
278 mps = 912 fps
   1 mps = 3.28 fps

.305=1' so for rounding purposes just consider .3 a foot. I would just ignore the tens myself.

I don't see tenths when measuring MV on my AGs, so I don't have to ignore it.   None of them shoot under 100 mps.

However, since there is obviously some rounding going on, there is a possible variance without measuring tenths of at least 3+ fps on each shot measurement.  (+1.5/-1.5 fps)


Not a huge deal, but I WOULD buy another one (clamp on model) if it always measured in tenths of a mps (4 digit display) or simply measured in fps to start with.

They are SOOOO cheap and mine has worked flawlessly so far!

[Earl]

I think that the actual measurement is not as accurate as what shows up on the screen.
My Caldwell Kit will show a velocity of 855 fps but the number it shows is actually off by as much as 25 fps.
I have 2 Caldwell Kits, plus a Prochrono Pal, plus a Chinese clamp-on.
When I line them up and shoot thru all 3 and adjust for the distance from the muzzle, they do not exactly agree.
My Calwells are off the most.

[BackStop]

I think that the actual measurement is not as accurate as what shows up on the screen.
My Caldwell Kit will show a velocity of 855 fps but the number it shows is actually off by as much as 25 fps.
I have 2 Caldwell Kits, plus a Prochrono Pro, plus a Chinese clamp-on.
When I line them up and shoot thru all 3 and adjust for the distance from the muzzle, they do not exactly agree.
My Calwells are off the most.

I don't have any other chronos, but I suspect the clamp on model is more consistent simply because it IS attached to the barrel and all shots pass through the sensors at the same angle, etc.

Of course, I could be wrong, but I am very satisfied with mine.   Doing the quick math for FPS isn't really a problem, but it would be nice if it did do FPS out of the box and then I would not care at all about tenths of a FPS.

Anyway, thanks for the replies!

[WobblyHand]

The tripod model chrony I have has 4 digits.  Yesterday, I measured one of my P17's and measured 119.6 m/s ( 392.4 fps) average.  The other P17 comes in at 123.6 m/s (405.6 fps) average.  Brown box 7.9gr.  (Measured on different days...)

[flaircraft]

I ordered one of these from AliExpress on Dec 1st.  It just showed up today (Dec 19th).  18 days shipping from China isn't bad at all, especially considering it was "free shipping".  Now I just have to open it and test it out...

[gopherbgone]

I did some slight alteration to mine with longer bolts and wing nuts so it’s always a single unit instead of putting it together and I keep dropping the allen bolts. Now i just slide on then tighten the wing nuts. I also gorilla taped the contact surface to prevent barrel marks and scratches.

[BackStop]

I did some slight alteration to mine with longer bolts and wing nuts.  I also gorilla taped the contact surface to prevent barrel marks and scratches.

I may need to do something like that so that I can actually clamp it on a Beeman P17.   (grin)

But, the MVM would probably have to go under the gun because of where the muzzle is located.

No problem...   I have mounted the MVM at all locations of the clock on other AGs and it just keeps working like a top!  (smile)