The generator matrix

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

generates a code of length 71 over Z25 who´s minimum homogenous weight is 260.

Homogenous weight enumerator: w(x)=1x^0+100x^260+80x^262+160x^264+432x^265+220x^266+200x^267+280x^268+560x^269+1928x^270+720x^271+1140x^272+860x^273+1700x^274+3252x^275+1880x^276+1700x^277+2060x^278+1900x^279+5368x^280+2580x^281+3100x^282+3860x^283+3200x^284+7396x^285+3480x^286+3420x^287+3760x^288+2740x^289+6784x^290+2860x^291+2100x^292+1680x^293+1840x^294+2192x^295+760x^296+760x^297+400x^299+204x^300+164x^305+144x^310+44x^315+56x^320+48x^325+8x^330+4x^345

The gray image is a code over GF(5) with n=355, k=7 and d=260.
This code was found by Heurico 1.16 in 12.6 seconds.