My $30 general brand, and $40 mit clone, have always matched my real $100 dial Mits.
So precision doesn't seem to be an issue. Working longevity however, is something to be considered.
I use my junky calipers every day; and when I reload I check them against my dial Mit to make sure they are...
The wife and I walk a 3 mile loop on a forest road in Northern Arizona. Our lil honey hole. During early season we usually hit our limit, which was 10 each per day, now I believe they changed it to 5.
We use 10/22s, I use a charger pistol with a red dot, and she uses a long aftermarket stock...