Welcome to the forum! When you say pack out a deer,, are you thinking deboned or just quartered? 2250 cu in is on the small size for gear and a deer, I'd be thinking more in the 3000 range. On a multi-day trip I use a Redhead Spike Camp frame pack (discontinued) with 6500 cu in and will fill that thing up with a tent, sleeping bag, food, rifle, etc and still have room for a deer. If you are only hauling one quartered deer with no other gear the 2200 should be just fine. I'd lean towards the Alps for the extra size.