Re: Ross rifle
"the 1905 Ross has its design origins in target rifle competition
the tolerances are very tight - no slop or play
the probllem that arose was twofold...
1: dirt - mud - water - debris - detrius of war
this can impede or prevent a firearm from operating
the super tight tolerances made this issue pronounced
2: ammo age and production standards
ammo for the british empire (.303) was made on several continents over a 60+ year timespan
it was not made to exacting tolerances and was stored under some dubious conditions
the super tight tolerances made this issue pronounced"
Once again, the dirt and mud problem arose with the Model 1910 which was, as noted, a whole different rifle from the original poster's Model 1905. The Model 1905 (Mk II) was never used in wartime; it was too late for the Boer war and too early for WWI. The Model 1905's problems cropped up in testing and training, not in the trenches of Europe.
The Model 1910 did have dirt and mud problems, but problems with ammunition made over a 60 year period on several continents was not one of them. For one thing, forty of those years had not come yet, and the ammunition used by the British and Canadians in WWI was made in England and the U.S.