ACETECH AC5000 Airsoft Gun Speed Tester BBs Shooting Chronograph (AA battery*2 required)

In relation to Nerf: For the price, this is a very good and functional chronograph. For Round ammo (such as Nerf Gelfire, Rival, hyper etc.) it works absolutely fine & readings are accurate when compared to my Caldwell Ballistic chronograph. Darts however are hit & miss. Half-length darts tend to work fine but I’d get the odd bad reading every 10-12 shots. Full length darts however are very temperamental with every 3-4 shots reading significantly different to the rest. If you’re a Pro-performance dart player (Nerf pro, rival, hyper, Gelfire) then this is perfect for a budget chrono. However do not buy if you plan to mainly test full-length darts.

Brilliant bit of kit very accurate easy to use and if you want to convert the ft/lbs for your air rifle just download the ballistic calculator of your app store job done would recommend and for the price it's a must to have if you want your rifle to stay legal

Easy to use and clear screen it takes 2 ×AA batteries which is handy

Good quality straightforward Corno Easy to use and reliable

Easy to use, even though the instructions are not brilliant. Theres loads of videos on YouTube on how to set it up! Using it to chronograph my .177 air rifle and does the job perfectly.

Works and accurate

Bought for test my sub-12 air rifles. Didn't have chance to use it straight away, when I did, it allows you to program in various pellet weights easily, but when I tried to run pellets through at the range it gave one , very low (156.9ft/s, equating to about 0.5ft/lb) reading, then stopped reading all together. Next chance I got to test it was with my HW77, for which it returned 9/10 shots, average of 10.8ft/Lb, so I thought it was settled in. A month later with my BSA ultra, again, low first reading. Then nothing. Totally unreliable. May be a faulty unit and not typical of the device, as I've seen good reviews, but this is going back and I'll be investing more cash in a higher end device.

Brilliant and very accurate, only down side is you have to work out the ft/lb but that's easy these days. Stay legal and under 12ft/lb and it's paid for itself.