Accessing grazing lease - two questions

[Camdec]

I know this has been brought up before but looking for some advice. Scouting down south the last couple days in preparation for antelope hunt starting tomorrow. I’ve spoke To a few contacts with grazing leases for access, but have been trying another which comes with an automated message “unable to take your call” and no ability to leave a message.

1) Am I offside accessing the lease if no cattle are present?

2) Is there a specific distance from cattle you or your hunted animal must be?

Thanks for the replies