Couple years ago I was studying how and where to find/go the Crown Land, and ran into some confusions.
If you find and visit a "free" place to sight in your amo and scope for a hunting season that may be OKish, but if the officials recognizes that you started visiting frequently same area that became a no-no. Especially if you shoot with non hunting rifle.
My spots were same 3-4 hrs drive out from my door North East between Muskoka-Algonquin, and when I recalculated all my cost and effort I decided to join SGC 15 Km away where I can drive in less then 15 minutes any time. It was not cheap leasing the share + membership fee, but the Total $ is about there.
Second thought about Borden, hard to catch the time slot for longer range, all registration online until you finish filling up - all booked.
With my f-class 308 it is a waste of amo shooting below 5-600 M I am realizing that. But...I have airguns as well

With my FX air rifles training and practising year along that is averaging between 8K to 10K shots easily...

I had people told me "baaah" but no one of them knows that takes some trained skill set hitting X's @ 100 with a pellet, and I am preparing my rig for 200 M rings now.