I have gone 25/25 several times in muzzle loading trap.
Last year I got myself a Browning BT-99 trap gun to practice with and the very first time I shot it, I hit 24/25 with 7/8 ounce loads. So far, repeating a 25/25 has eluded me, both with the muzzleloader and the modern gun.
I did manage to shoot a 45/50 in 16 yd singles in the local Saturday morning trap league with the BT-99.
Maybe next weekend!