you probably don't have the best stats out there, but back when my ranger was a wee little noob 55 it did some damage in BH. and it had 40 def at the time.
I got a lvl 60 with 80 str 50 att 86 range 73 const 77 mage 1def.. really need 85 mage bit mehh.... :/
although i sw the majority of my str but only ranged guilded from 81-86 range.
at 56 combat im pretty sure you can have higher stats than that, although your const would be lower..
What I recommend is going to a combat calculator, then getting ur stats, etc... And seeing how many levels you can go up or down without going to 57.. that will give you a little judgement of what you can be up against, the more str you have the much higher mage and range you can go,sort of