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

generates a code of length 77 over Z25 who´s minimum homogenous weight is 303.

Homogenous weight enumerator: w(x)=1x^0+200x^303+48x^305+100x^308+56x^310+200x^313+12x^315+4x^320+4x^360

The gray image is a code over GF(5) with n=385, k=4 and d=303.
This code was found by Heurico 1.16 in 0.188 seconds.