
Using the convination between two frames (the one before the shoot and the one just one is blocked)
The difference is 5.5 times (this isnt an exact distance but an aproximation)
now we use the speed of the gun. (I didnt found an exact amout but the closest thing was Smith and Weson 500)
muzzle velocity: 632m/s this times 4 is equal to 3476 m/s or just above mach 10 (hypersonic+)
Now for the large building level/possible City block:

Humano Promedio:1.75 Metros | 125 Píxeles Altura del Camión:240 Píxeles | (240/125) * 1.75=3.36 Metros

Heigh of the truck:3.36 Metros | 160 Píxels Width of the Truck:150 Píxels | (150/160) * 3.36=3.15 M Length of the truck (Destroyed part of the truck):280 Píxels | (280/160) * 3.36=5.88 M
Calc: Volume:62233920 cm3/62.23 m3
But, this volume must be reduced to 99%, since it is not a real volume, it is mostly empty. Volume (Actual):622339.2 cm3/0.6223 m3 Well, it was destroyed in an explosion so Vaporization sounds good. Steel Vaporization Value:70793.05932 j/cc 622339.2 * 70793.05932=44057295902.761344 Joules or 10.529946439474509035 Tons of TNT (High 8-C: Large building+)
Lets do the same but Pulverization: 1000*622339.2=622392000 jouls or 0.1487552581 Tons small building and here is the same as the past one
Jeb tanked a rocket explotion that should be comparable to the one that did this feat. that being said there is a need to to remember that this Jeb was weakened which is obvious with project Nexus in which he gets hit by another rocket except that this time he was mostly undamaged and Gestalt should be building as he tanked 3 TNT while weakended
Vaporization: 21.05989288 Tons or City Block
Gestalt: 31.58983932 City block if you take in consideration that he was weakened 63.17967864 Tons City block+
However Hank used the four pack which is 4 times more powerful
Jeb only using the four pack in consideration: 42.11978576 Tons City block. using both facts: 84.23957152 Tons City Block+
Gestalt: 126.3593573 Tons: if you take both facts Multi City Block 252.7187146
Pulverization: 0.2975105162 Tons Building
Gestalt: 0.4462657743 Tons Building However if you take the fact it was weakened .8925315486 tons
Using Four pack for gestalt: 1.785063097 Tons Building+ If you use both facts 3.570126194 Tons Large building
For Jeb: 0.5950210324 Tons Building using both facts 1.190042065 Building+
Use the end that you see better