That is a very nice rifle. +1 for what they said about the history. It was used by the US in WW1 and not WWII though, when the US entered the war later with a small arms shortage just like the Canadians had run into but they had switched to the SMLE.
There is no need to tie the rifle to a tree or be scared of it though, the problem with the bolts is confined to the MKIII Ross. As per the usual legalese as long as its in good condition and perhaps inspected by a gunsmith it should be perfectly safe to fire.
I am new here, and I know virtualy nothing about the Ross rifles, however I found this article from the NRA [U.S] dated 2013-05-23, titled "The Ross Rifle in U.S. Service",
by Bruce N. Canfield. If this information has been presentd elsewhere, fogive me...