There are different reasons why a given weapon could be "trash" and people are not examining the REASONS closely enough.
Want to see a real trash Moisin-Nagant? I'll loan you one of mine and some of this nice 8x56R ammo I have lying around. Basically, you are in the same situation as the guy who was issued a Ross along with ammo which had been previously CONDEMNED because it was so far out of spec that a Lee-Enfield could not digest it.
Ross Chambers were not made "tighter"; the reamer specs were provided by Enfield and the reamers were identical. The "flaw" was that the Ross action was so incredibly strong that the Chambers did not EXPAND on Proving the rifles to the extent that an LE chamber would expand. RESULT was the same, though: tight Chambers on the Rosses. This was NO problem if the Ammo was TO SPEC. Canadian Ammunition was not made to a "smaller" spec; it was made precisely to the existing Imperial spec.
Between the original Ross Mark II and the Mark II***** there are 82 design and specification changes. Nearly ALL of these are down to the SSAC - the Standing Small Arms Committee. Robert A. Heinlein once said that "A Committee is a life form with two or more legs and no brain!", and he was very nearly right. It is directly down to the experts at the SSAC that Ross is remembered as "the man who never made the same rifle twice".
The Mark III (THREE) Ross was another matter entirely; it was based on PATENTS dated 1910 but the first rifles were not built until at least 2 years later. First delivery of any number to the Canada Militia was in 1913. Rifles were being built slowly for the military (which already was well-armed) and much of plant production was going into Sporters. Troop trials with a large number of Rosses were scheduled for 1914, but European affairs intervened and the new rifle became THE combat arm WITHOUT a trial. Here again, the SSAC intervened, blocking the manufacture of a Mark III with a 26-inch barrel which already had been prototyped at the request of the Artillery. Demands for "instant production", clearly impossible without trained staff and materials at hand, followed and the factory bought materials when and as possible, hired hundreds of workers and trained them on the job..... only to have them learn what to do and then leave for better-paying jobs at the huge American plants which were tooling for P-14 production, for Berthier production, for Moisin-Nagant production. The Ross factory became a training-ground for Winchester and Remington workers and the Government of Canada refused flatly to declare the Ross plant to be a critical plant, which would have stabilised the work force. Some rifles left the factory with barrels reefed-on so tight that it actually crushed the Chamber entrance, making for a jamming rifle as soon as it was fired.
To be fair, NONE of this was the fault of the RIFLE. I have a rifle here which was to have taken part in the 1914 Trials but which ended up in Bermuda, France, Belgium, England and Chile before coming back to Canada. You will not find a slicker, more reliable rifle anywhere... and I very much doubt that you can show me many rifles 95 years newer which are more accurate. YES, it is long and heavy and you can't get into your dugout with you rifle slung: that was the MAIN complaint against the rifle in the actual Trenches. Yes, it could mud-up; so could a Mauser, a Lee-Enfield, ANY other rifle: THAT was the biggest problem of all. The solution was to clean your rifle. Yes, there was a problem with the Bolt; follow the Standing Orders and the Armourer looked after it for you.
The worst thing about the Ross was not that it was "not British"; the Brits would have accepted what the Ross did had it come from a Swiss or German rifle. The problem was that the Ross was COLONIAL and was a direct result of a mere COLONY becoming uppity when the Mother Country TOLD it that it would be allowed to have the cast-offs of Imperial Service..... but would NOT be allowed to have the most modern rifles. So THAT was pretty terrible..... and then the Ross had to compound that by smearing the latest British rifles practically OFF the ranges.... in the TOP Match in the British Empire. Looked bloody bad, what? BRITISH rifles being defeated on British ranges, what? Can't have that, old man, can't have that. Not bloody SPORTING!
So that takes care of the Ross for a while.
I hope.
......
'Nuff said.