RE: 710 is now updated
When the bolt is locked to the bbl, there is no problem withstanding the pressure of a cartridge firing. I don't worry about that, however the rest of the rifle is crap.
It was not built to last a lifetime, Remington broke new ground by creating a use and toss rifle, but they priced it too high.
I like things that last, for example my 1893 mauser that is still taking game and looking good. Or, my 2001 Model 70 Winchester .270 that shoots 1/2 groups at 100. That one I will hand down to my grandson.
The Rem will be trashed before that happens. When you want something that is built to last, or something that will be a one-time purchase that lasts...don't buy junk. Just my opinion.