I have owned several M-10 Ross rifles (as well as 1905s). The bolt can be miassembled, but in a normal situation, it is quite obvious. The problem lay in a combination of factors. The Ross is a precision rifle compared to the SMLE, dirt and muck degraded function. The troops pulled them apart to clean them, then slapped them back together under the influence of too much adrenalin when the Huns attacked. This was the recipe for disaster.
I like to specualte what might have happend if the Ross had been adopted 20 years later! Similar straight pull actions remained in service until supplanted by S/A rifles in the 1950s. (Also, if my Aunt had b- - -s, she'd be my Uncle!)