Hey Judgemint,
I work as a forester and use a Garmin 76 (under $200) every day - it works faster & easier than the $3500 units that my (government) agency provides. Now to be honest the accuracy varies quite a bit - with terrain, tree cover, and time of day - but NO GPS UNIT can guarantee that it won't do this! I've personally never seen an error greater than 200', but I'd say that 20-50' is more normal - unless you plan on setting property corners while hunting, you'll probably get by with this -and it's often better on open ground and flat terrain.