I would look seriously at the Leupold 1.5-5x20 I believe it comes with Firedot. Rarely will you have to turn the power up to 5x so you will have as much light coming through it as your eye can handle. I use a number 1-4x20 thru 1.5-5x20 scopes and have not had a problem with low light, if I can see them coming in with my bare eyes I can see them in the scope.
If you can't bring yourself to go with a 20mm objective there are a number of 1.5-6x40mm scopes out there. I think I have a half dozen of various makes and like them a lot also but most of the modern ones have 30mm tubes and are quite heavy.
One of the really important things in a brush/woods scopes is "eyebox", the ability to see through the scope even if your head isn't in the exact perfect position and Leupold is very good here.
Another is fit of the rifle, if you have to move your head around to see through the scope it is slowing you down. Your rifle should fit to the point of when the butt hits your shoulder you should be looking through the scope.
Reticles are important also, heavy and bold. German #1&4 work really well as does a heavy duplex. I field tested a scope for a company, a 1-6x24 with floating circles for a reticle with no horizontal bars. I had a very hard time getting on critters. I called five in and never killed a one.
My little 20 Practical is wearing a Leupold Freedom 1.5-4x20 with the PigPlex and I'm liking it.
The 20P with Leupold, note the butt bag, you will see them on most of my rifles, not to carry stuff in but to raise the comb for a better fit.
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