![Amazon.com : Hatsan Blitz Full Auto PCP .22 Cal 1150 fps 53 FPE w/ 21-Shots 2 Magazines Air Rifle with Included Wearable4U 100x Paper Targets and 250x .22cal Pellets Bundle : Sports & Outdoors Amazon.com : Hatsan Blitz Full Auto PCP .22 Cal 1150 fps 53 FPE w/ 21-Shots 2 Magazines Air Rifle with Included Wearable4U 100x Paper Targets and 250x .22cal Pellets Bundle : Sports & Outdoors](https://m.media-amazon.com/images/I/71WG-zQvp+L._AC_UF1000,1000_QL80_.jpg)
Amazon.com : Hatsan Blitz Full Auto PCP .22 Cal 1150 fps 53 FPE w/ 21-Shots 2 Magazines Air Rifle with Included Wearable4U 100x Paper Targets and 250x .22cal Pellets Bundle : Sports & Outdoors
I bought a rifle, the seller told me it was 20 joules, but I think he lied. The power is not written anywhere, so how can I calculate the power of my
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