.303 M-10s?

[NORTHOF60]

I'm not an expert on the Ross, but my understanding is as follows:

The basic Ross rifle action manufactured after 1910 was the M-1910. This action was revised and issued around 1913/14 as the M-10. This coincided with the revised bolt stop. The factory sporter categories for the M-1910/M-10 were R (basic - no checkering, with Winchester barrel mounted step adjustable sight, and single stack metal magazine), E (better stock wood with checkering, barrel mounted flip sight, and single stack metal magazine), and M (top of the line, barrel mounted sight, blind magazine). I've seen the sporter category stamped at the knox form of the rifles. The .280 Ross sporter was not stamped because it was always a M. M-1910/M-10 factory sporters always had the sight mounted on the barrel, with the exception of the M which could be equipped with an auxiliary Porter pop-up peep sight on the action "bridge". Factory sporters never had the the military receiver bridge sight.

[Toffee]

Thank you for all the information everyone!

We still aren't quite sure what this gun is - I notice on the stock (which I presume was a post-war addition) it is marked F wonder if that has any meaning?

I've attached a couple pics, please let me know if there are other things we should be looking at to positively ID it.

There are no front sights which I think will make it very difficult to shoot accurately down the road, this thing also needs a magazine though so that is not exactly it's most pressing concern

[NORTHOF60]

A military rifle, sight on charger bridge, no bolt rivet, with enlarged chamber (E on barrel knox form), sold into the civilian market (Nitro Proved) (Not English Made). It appears to have the original stock, minus hand guard. If the barrel hasn't been shortened, you can try to return it to proper military configuration.

[Surpmil]

More abused than used by the look of it. Post some full views perhaps?