Hi,
You can use any .22 ammo to check the sights, it will be quite accurate with all of them. As with most .22 revolvers, however, you will find that your particular gun will have a preference and shoot its best with some brands, a little better than others. So try at least 3 or 4 different brands.
Mine like Federal and CCI .22 Long Rifle. Or just use the least expensive, it will do very well. Keep the chambers clean for ease of cartridge insertion.
You can use any .22 ammo to check the sights, it will be quite accurate with all of them. As with most .22 revolvers, however, you will find that your particular gun will have a preference and shoot its best with some brands, a little better than others. So try at least 3 or 4 different brands.
Mine like Federal and CCI .22 Long Rifle. Or just use the least expensive, it will do very well. Keep the chambers clean for ease of cartridge insertion.