Have a couple of 1910s, one in .303 British and the other a .280 Ross. Have tried to assemble these incorrectly and on these two you would have to beat the bolt with a heavy hammer to get the bolt in any distance. The same applies to others I have handled. I know of others that have been used extensively that are rebarreled to 7mm Weatherby Magnum, .300 H & H Magnum and .338 Winchester Magnum. There have been no problems in any of these. It is interesting that the same principle used in the Ross mechanism is also used in a number of "modern" self loading and a pump action rifle.
Also have a 1905 - in this rifle the bolt cannot be inserted incorrectly as the extractor will not let the front of the bolt turn to the left when the bolt is removed from the action.
Some early Ross rifles were also manufactured in England by, if memory serves, Lancaster.
Bill
