Just as I was trying out a .25 the other day at 'normal' airgun range - not really trying hard and was (after I realised how far away the target was - paced it out ) surprised at the accuracy . And was using open sights at the time . Seem to remember growing up with a lot of gabble from experts telling me not to try using a .25 for anything more than 15metres
Will try out a decent scope and wash and clean the pellets before trying next time . Just was pleasantly surprised