1905 Ross Model R Sporter
Well, now, this is getting interesting. Yesterday I stopped at a person who had told me he had an "old Ross rifle," and would like to sell it. It was reasonable, so of course, I bought it.
It turned out to be a 1905 Ross Model R factory Sporter. It also had a trigger guard from a Military Mark II the same as your rifle. We need a few more pictures of your rifle, particularly the top of the barrel near the receiver. Does your rifle have any calibre markings, such as ".303 Ross" or a "P in a circle" on it in that area?
From this, it would appear that since the Model R was an Economy Sporter, the Ross factory used some Military floorplates and trigger guards that were available, but put a much narrower sling swivel loop on them. Your rifle has the same type of sling swivel loop.
Also, unscrew the buttplate and check for a serial number on the inside of the buttplate, at the top.
Commercial Ross rifles were usually serial numbered on on the left side of the barrel, just ahead of the receiver ring, in very small numbers, a little over 1/16 inch high.
Lets have a few more pix.
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