Ugh. You're killing me George. You shoot and post these great videos! 

Obsolete technology? Really?

It seems to me that all the advancements in bolt action rifle technology in the past 100 years have happened in pretty tiny increments, and most of those advancements have more to do with how much labor goes into making them accurate than the levels of absolute accuracy that can be achieved.

How much more can the rifles from Sako or AI really do, and for how much more $$$?

Apologies for the obsolete vs. old misquote.

I'm still curious though, do the Sako or AI really do much that the CZ can't do for $1000 less?

I understand how rail and tube guns very effectively sidestep the difficulties of achieving perfect bedding that you see in traditional stocks, but how much better are they than properly done pillar, block, or glass bedding?

1.5 inch groups at 400 yards with Factory Ammo?  Sure... go ahead and Poo-poo the CZ750 because it isn't "THE BEST".  It's only 2 Grand.  How much is an AI?  Seriously?  6 Grand?  TacticalRifles.Net?  4500?  Come on.   Seriously.   
Your post is like comparing a Contour to a Quatroporte because they both have 4 doors.
However - You take the average shooter that thinks he knows rifles - and let them shoot both - I bet the results will be damn near the same.
Technology?  It's a rifle, not a Pentium microprocessor.  The only real advance is in aluminum box bedding.  Everything else is pretty much the same as we've been building them since the late 1800's.  Unless Accuracy International is using Warp Coil Fields to stabilize the projectile as it's magnetically driven out the barrel. 
One improvement CZ did on the 750 recently was to ditch the single set trigger and just put in a really good factory trigger.  No over travel like the SST has.

Oh some guy on another forum said that he read on another forum?  s___... I better send them all back to CZ USA then.
 

CZ USA was surprised when we've made so many orders for these rifles... Because they said we are the only dealer actually moving them.  We have the highest concentrations of the CZ 750's in the country here in the Basin.  I've shot 3 different 750's. 2 topped with Zeiss and 1 topped with a Swarovski.  Shockingly accurate.  It can compete with guns that cost twice as much.   I would love to have one myself.  Yes, it's a 550 action.  So?  Do they need to build a whole new action?  Come on... this is a .308 and the 550 Action is frequently used for .375H&H, .458 Lott and bigger rounds.  A little .308 is nothing for it.  Did we all the sudden forget that most "Custom" rifles and Custom "Tactical" rifles are built off Remington 700 Actions?    Come on.   There are too many noses in the air in the shooting community and not enough people putting those noses behind the charging handles and shooting. 
Give the CZ 750 a fair shake based on what you personally witness or do yourself - not on internet hearsay.     

Nah I'm not saying thay are crap rifles because some bloke said a bloke who met a blokes brother down the pub has a dog that can hit out to 4000 meters with a slingshot. All it is , is a form of validation to gunwriter's statement that Sako's and A.I's are rail guns under the hood and that they use a better barrel than CZ. Question is that bolt on the CZ a bit stiff in you vid George is it the way your opening it? Also surely this thing can be more effective than upto 800m?

You do notice I'm operating the bolt with my left hand while not touching the rifle its self... while holding a camera.
Cut me some slack!  I don't edit anything either.

I've got about 20 different 550's and the 750 at Basin - No - it's not the same barrel.  That's laughable. 

I don't see how using the same barrel as the 550 is necessarily any kind of indictment against the 750, it could as easily mean that the barrel used on the 550 is just that good.

I still want somebody to quantify exactly what other rifles actually do better than the CZ. The proof will be in the pudding.

Better is in the eye of the beholder....you can't quantify that. If a rifle serves your needs, then that is all that matters.

For me personally, what I like about the SAKO TRG is
the enclosed receiver
short 60 VS 90 degree bolt rotation
3 VS 2 lug bolt
short bolt throw
extremely simple bolt take-down
very quick lock time
QD bipod design which has a very wide stance VS command height making it extremely stable
competition style rail on forend
ability to carry the rifle biathlon style
fully adjustable stock
ability to mount military BUIS, muzzle break, sound suppressor
Due to the design there is no bedding to wear out,
the action is noticeably quicker than most other designs.
Accuracy, as long as it's acceptable, is down on my list when choosing a rifle
of this type. How the rifle feels, handles, action speed, magazine design, etc are
all more important to me. Basically its pretty simple to make any good bolt gun shoot well.
However, regarding accuracy the TRG performs extremely well for a factory rifle.

This past weekend I had the annual Big 3 industry event on my range and one of the companies
in attendance was Hensoldt. Nathan Hunt brought an AI AE with one of his 4-16x56mms on it.
I'm not a huge fan of the AI, but what I respect most about it is what a rugged and durable design
it is. At this event we had all manner of bolt and semi-auto sniper rifles with a number of former/active duty
snipers including an SVDS. I'm not a "I read it on the intraweb" kinda guy.....

No slight against CZ, Jason brought over two of their first .338 Lapua Magnum sniper rifles and we
tested them on my range. I'm just not a big fan of basic '98 action. I've been aware of the CZ750 from when
Marty of Badger was with CZ, and that was quite a few years ago...

Tell me that if you, as a professional gunfighter, witnessed the same thing would not be sold, no questions asked; except where and how fast can I get one?

Well... yeah... unfortunately I'm not Government Funded and I have to ask "How Much" as well.  s___ yeah, if I had the .Gov footing the bill I'd have an AI with a Nightforce.  Not a question. 
Remember - this gun is only 1999 and change.  How much is that Arctic Warfare rifle?

  Who's issuing the CZ?  How easy is it to service (think military here, people)?  How durable is it?

I don't care who issues it, I only care about what works for me.  How easy is it too service? Get real. I take it across the river to Melvin Forbes and he fixes it for me.  If I ruled a small country with money to spare I'd get the AI, why not?.
But since I'm just some guy, I'll have to settle for something less spendy so I can afford ammo to practice with.

  There's an LRI graduate by the name of "XringMick" (who's on this forum) that shoots the cheaper AI AE that's comparable in price to the CZ.  His shoots a solid 1/3 MOA.  Don't think I need to say anything else.....