These videos of blowing rifles (One of each, Blaser R-93, Howa 1500, Zoli 1900, Browning A-Bolt, Rem 700, Mannlicher, Sako 85 and Tikka T3) were part of a some "tests" done by a Swedish consumer's publication in 2008. They heavily plugged the barrels to see how / if it would burst. Before that, they submerged the rifles in brine and performed other torture tests. While the Euro (and a Japanese

) rifles held together almost perfectly, these tests did not reflect real life conditions. But we still can make our own conclusions.
I read the article when it came out but later I wasn't able to re-locate it on their website.