There are a lot of packs in that size that will work well for that purpose.
Some of my favorite hunting daypacks are:
-Kuiu Venture 1800 or 2300
-Sitka Flash 20 (discontinued, but there is one in the classifieds right now for $85)
-Mystery Ranch Dragonslayer (discontinued)
- Stone Glacier Avail
-Stone Glacier Tokeen 2600
-Kifaru 14'R (discontinued)
-Kifaru Spike Camp (discontinued)
Other hunting daypacks in the size range:
-Eberlestock freefall 2000
-Eberlestock X2
-Kifaru shapecharge
-Hill People Gear Ute
-Hill People Gear Aston House
-Sitka mountain hauler 2700
-Badlands 2200
There are several tactical packs that would work:
-Triple Aught Design Fastpack EDC
-Granite Gear Tactical Special mission assault
-High Ground Gear HG 3 day pack
-5.11 Rush 72
-Arcteryx LEAF Assault 30/45
My recommendation would be to check out the Kuiu Venture packs. For the price, they are really full featured. The 2300 has a better compression system and uses 3/4" webbing as opposed to the 5/8" webbing on the 1800.
I should mention, too. All the packs listed above are internal frame packs. There are a bunch of daypacks that fit on hunting frames, but I left those out since you said you're not packing meat.
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