The generator matrix

 1  0  1  1  1  1  1  1  1  0  1  1  1  1  1  1  1  1  5  1  1  1  1  5  1  1 15  1  1  1  1  1  1  1  1  1  1  1 10 10 15  1  1  1 10  1  1  1  1  5 15  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
 0  1  1  7 14 18  0 16  7  1 14 18  5 12 19  5 16 23  1 21 12 19 23  1  1  4  1 10 20 22 22  8  8 16 21  9  9  4  1  1  1  1 21  9  1  0 20  5 10  1  1 11 11 10 14  4  7 12 20 17 17 22 17 10  7  5 12 20 17 22  0 11 11  1 21 16
 0  0 15 10  5  0 20 10  5 10 15 20 10 15 20  5  0 15 20  5 20  0 10 15 20 10  5  5  0  5 20  0 10  5 15  0 20 15  0 10 20 10  0  5 15 10 20 15  0 10  0 15  0 15 20  0 15 10  5 20  5 10 15 20 20  0  5 10 10 15  5 10  5  0 20 15

generates a code of length 76 over Z25 who´s minimum homogenous weight is 300.

Homogenous weight enumerator: w(x)=1x^0+1520x^300+1080x^305+240x^310+200x^315+60x^320+16x^325+8x^350

The gray image is a code over GF(5) with n=380, k=5 and d=300.
This code was found by Heurico 1.16 in 8.32 seconds.