Difference between Axis and 110

Could someone tell me the REAL difference between the Axis and 110?
I noticed this asked before, and one answer was something like
"different trigger, different stock, different action".

I have several of the older 110 type guns. So I am pretty familar
with them. Also I put the barrels on them, none are standard off
the shelf items.

I am interested in the REAL difference in design. I notice the Axis has
that enclosed type action. I sort of like that, I have a Savage target
action that is also this type of action. It makes for a more rigid action.
target action with enclosed action:
http://savagearms.com/firearms/actions/target/

How similar is bolt design? Is it pretty much the same type design
with similar removable bolt head?

How about the trigger? I notice the Axis XP has accu-trigger. Is it pretty
much the same as the 110 accu-trigger? I have a field model with
accu-trigger and it is pretty good, but I would like it a little lighter.
I have that target accu-trigger on my 110 target type action,
and it is a hair trigger, too light except for serious target type applications, in my opinion.

How much interchangability is there is parts between the Axis and 110
type?

I assume the Axis models are all the same length. Do they use the
same magazines, like does a 308 and 3006 use the same mag or does
the short one have a spacer added to the magazine?

Can you interchange stocks?

Any comments on these comparable items is what I am looking for.

For the most part, the parts are not interchangeable.

The Accutrigger is essentially the same.
Bolts are not all that similar, but the have the same bolt heads.
Stocks are not interchangeable.
The Axis uses a different mag than the older model 110's. Some newer model 110's use Axis style mags, they are a considerably cheaper design.
The entire design of the Axis sear and trigger assembly and safety, etc. are completely diferent than the model 110's

In short, the Axis is a totally different design. I am really impressed with the way they designed/engineered it to be very inexpensive to build/mfr and yet function well and shoot very well for hunting purposes. It is amazing how well it functions for a $250-300 gun. It definitely "fits the bill" for cheap, accurate, practical, utility hunting rifle. Having said that, it is not a quality heirloom type of gun and I don't think they would be embarrassed to say so themselves. It is what it is.

The Axis XP does not have the accu trigger, but the Axis ll XP does, per the Savage sight.

The small shank barrels are also interchangeable.

As I understand it all the axis are a long action and they all use short action bolt heads.