dear Jack Sir
here below the data of cut wire to steel shot .

Cast Steel Shot Sizes and Equivalent Cut Wire Shot Sizes
Cast Steel US Standard Sieve Average Equivalent Cut
Size Ranges Diameter Wire Size
S-70 45 to 80 mesh 0.0117 CW 12*
S-110 40 to 50 mesh 0.0139 CW 14*
S-130 35 to 45 mesh 0.0165 CW 17*
S-170 30 to 40 mesh 0.0197 CW 17 CW 20*
S-190 25 to 35 mesh 0.0234 CW 20 CW 23*
S-230 20 to 30 mesh 0.0278 CW 23 CW 28*
S-280 18 to 25 mesh 0.0331 CW 28 CW 32*
S-330 16 to 20 mesh 0.0394 CW 32

thanks
amit89