 of a 5.7 by 28 millimeter versus a 22 TCM round on a patio block. The 5.7 by 28, I have the Ruger 57. This round travels right around 2,200 feet per second. Rock Island TAC Ultra 22 TCM moves at 2,200 feet per second. And here are the patio blocks. Left 22 TCM, edged out the 5.7.