The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  5  1  1  1  1  1  5  1  5  1  1  1
 0  5  0  0  0  0  0  5  5 20 10 15 20 15 15 15 10 10  0  0 10 10 15 15 10 10 10  0  0 10 15 20 15  0 15 10 15 10 20 15 20  5  5  5  5 15 20  0  5 10  0 10  5  5  5 15  5 10  5 10
 0  0  5  0  0  5  5 15 20 15  0  5 10 10 20  0 20  5  5  0  5 15 15  5 20  0 10 10 10  5 20 20  5 15 15 20 10  0  5 10 20  5  0 20 20  5 20 10  5 10  5 15  0 20  5 20  5 20 10 20
 0  0  0  5  0 15 10 15  5  5 20  5  0  5 10  5  5 10 15 10  5  0 20  5 15 10 20 10 15 10 10 20  0 15 10  0 10  0  5  0  5  0 15  5 10 15 15 20 10  5  0 20 10 20 15 15  5 10 15 15
 0  0  0  0  5 15  5 20 15  5 15 20 10  0  0  5  0 15 10  5  5 20 10  5  0 20  0 20  5 20  5 10 20 10 15 10 20 10 15 10 15 20 15 20 15 15  5 10 10 10 15 15 15 15 10 20  0 10 20 15

generates a code of length 60 over Z25 who´s minimum homogenous weight is 220.

Homogenous weight enumerator: w(x)=1x^0+264x^220+460x^225+100x^228+424x^230+1200x^233+504x^235+4800x^238+332x^240+6400x^243+252x^245+204x^250+180x^255+152x^260+188x^265+84x^270+60x^275+16x^280+4x^285

The gray image is a code over GF(5) with n=300, k=6 and d=220.
This code was found by Heurico 1.16 in 39.3 seconds.