Need help understanding the distance and hash marks on my rifled barrel.

[ragingbulldaily]

Can someone please tell me how to read and know the distance for each hash Mark. Thanks.

[Synchronizor]

There is no set answer for which mark zeroes for what distance. Shotgun slugs vary way too much in terms of both velocity and aerodynamics. The marks are just there as a reference, so that you can get the elevation back to the same place if you take the sight base off, or move it for a different load. Take the slugs you're going to be using out to the range, do some shooting at the distances you want to be zeroed at, and get the elevation dialed in for yourself. Then, remember or write down the setting for that specific load.

[ragingbulldaily]

Thanks, o thought they where pre determined distances. Thanks again for your help.