I have used a 6mm or .243 and the .25 calibre is very similar.

They are used for small game and medim game.

But a .22/250 or .222 does far better than a .243 anyday for the small stuff.

If you look at a 6.5mm with the greater range of bullet weights from 85 grs to 160 grs it also is a far better killer of game than any .243 or .25.

Are the calibres and cartridges in the .243 and .25s completely redundant, obsolete and a waste of time?