Interesting, my grandad (I'm 73) was with the 13th bttl/42reg. BLACKWATCH /Montreal CEF out of Val Cartier....at IPRES in April 1915,
he tossed his ROSS and like many,picked up a #1mk III at first chance....A fine deer /moose rifle, a battle rifle? nope....
I gave a model 10 with ''pinned bolt ''to a commercial fisherman friend ,here on the B.C. west coast...it shot ''minute of seal''.
the sporster .280 Ross is a completely different deal.