Big country....I've been building rifles from .222 to .375 H&H for many years.....and I too have asked that question....back in the '60's (as I recall) Roy Weatherby did extensive tests when he bought out his markV rifle. It was his intent to have a rifle strong enough to stand up to his very high intensity cartridges...he destroyed mauser actions with loads that was successfully held in his action and he also tested many other actions to get ideas on how best to design his new rifle.

P O Ackley also performed "blow up" tests...however mostly on military actions that he wanted to sporterize. It was from his testing that the extreme strength of the Japanese Arisaka came to light.....he also pointed out the superiority of the P-17 enfield.

H P White Labratories was also commissioned to do testing on actions for various reasons.....sorry, I have no website to direct you to...much of my post is from memory and a long ways back.

I've also had personal experience and did some (non scientific) testing on my own. I wanted to know how reliable the '98 Mauser was...they have been so cheap and I wanted to use them...... I had a pair of .257 Roberts, one in a 700 Rem and one in a M-98 mauser. A load that caused the case in the 700 remington to have a enlarged primer pocket of .023 actually took the mauser apart...and I mean in several pieces. Wow!!

I had to beat the bolt handle open on the Remington and get this...the headstamp ".257 Rob" was visible on the bolt face!!!!...FACT!!

Accidently one day I had a .220 Swift case freeze my M-70 push feed and I had to remove the barrel to get the action open. The case had extruded into the extractor cut and pushed the extractor to the inside wall of the receiver ring which stopped the brass from bursting.....This kind of failure will destroy a gun with a claw extractor because there's nothing to stop the rupture.

So, lets rephrase this.....all modern actions (including the '98 Mauser) are strong enough for most all todays loads that can be fed thru them. But the process of retaining the case sufficiently to hold in the pressures that can rupture a case is totally another story.

At the time, the tests I read about said the Rem 700 and the Savage 110 did this the best...As I recall this was before Winchester's push feed and Browning was still using commercial FN actions for their guns.

If someone has a website to show data I'd be happy to visit it and enjoy reading it. Until then I'll put a Rem 700 up against even a weatherby mark V for strength and I'll make major bets on it compared to any rifle with a claw extractor.

Massive locking lugs are one thing.....controling a case eruption is a totally different thing.