What was the name of the Canadian-issued rifle why wasnt this rifle very effective in trench warfare?

The Canadian-issued rifle was the Ross Rifle. It was not very effective in trench warfare due to its susceptibility to jamming, particularly in muddy and dirty conditions typical of the trenches. Additionally, its bolt-action mechanism was less reliable under the stress of battle compared to other rifles, leading to issues with rapid-fire capabilities when needed. These flaws ultimately contributed to its replacement by the more reliable Lee-Enfield rifle.