The generator matrix

 1  0  0  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  0  5 10  1  1  5  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  5  0  0 20  1 10  1  1  1  1  1  1  1 15  1  1  1  1 15  1  1
 0  1  0  0  5 15  5 16  1 18 16  1 11 23  7 14  7 14  1  1  1 19 24  1 12 13 17 17  9 13 18  8 21 15 23 20  8  2 19 11  4 13  7 17 18  0  1  0 14  1  1 20  1 10  1  6 22  4  8  6 20 14  1 20  4  1  6  1 24  5
 0  0  1  1 22 14  8 13 24  5  2 11 15 22  7  7 23 13 23  2  9  9  1  6 21  8 10 19  5 24 16  2 10 21 15 12 16  2 23  1 15 24  6  4 20  0 18  1 19 11  0  1 22 12 18 11  7  2  4  5 21  0 22 16 22 14  6  3 16 12
 0  0  0 15 15 10 10 10 10  0 15 15  0  0 10 20 15  0 10 10 15  0 10  5 10 15 15  0 10 20 20  5  5  5 15  0 15 20  5 10 20  5  0 20 10  5  5 15 15 20 15  5  5 20 20 20  5  5  0 20  0  5  0 20 10 15  5 15  0 10

generates a code of length 70 over Z25 who´s minimum homogenous weight is 264.

Homogenous weight enumerator: w(x)=1x^0+400x^264+1640x^265+320x^266+1320x^267+2640x^269+5116x^270+700x^271+2280x^272+4460x^274+6748x^275+1180x^276+3280x^277+5160x^279+8160x^280+1000x^281+3760x^282+5260x^284+7556x^285+1120x^286+3040x^287+3560x^289+4984x^290+620x^291+1200x^292+1020x^294+1352x^295+60x^296+120x^297+16x^300+28x^305+12x^310+4x^315+8x^325

The gray image is a code over GF(5) with n=350, k=7 and d=264.
This code was found by Heurico 1.16 in 11.2 seconds.