i haven't put much effort into the 25 yard zero check, but have done it enough to know that i can bore sight (from the bags at the 100 yard line) and generally get closer.

but i will not trust a rifle that has not been shot to the distance i zero it at. if i zero at 25 yards, it's GTG at 25 yards. period. ymmv

Guns don't kill people, drivers with cell phones kill people.