Originally Posted by
Bagheera
As said, there are quite a few threads here on this topic.
Legal aspects aside, some practical considerations are:
A quick zero check may be only 4 or 5 shots and you’re done but a full target practice session with several shooters multiplies the risk of a mis stake by a lot.
Shooting at longer ranges increases the chances of stray shots and incomplete assessment of your firing zone. Specially, shooting at rocks …
Checking a previously zeroed rifle is different from first shots out of a new rig, where they could start way off the paper.
More shots are more likely to annoy, endanger or frighten.
In the past, it was usual to sight in at 25 yards and you can see why.