Both Argentine Mausers (1891 and 1909) were military rifles. By very nature, they were designed to impact the torso of an armed belligerent at ranges typically exceeding 100 yards by quite a bit, with ammunition as issued. So this example is not particular gifted, but it does what it's supposed to do.
Not talking the rifle down, but it shoots well like that sort of rifle should.
The two rifles were linked in history as they were both Mausers and they were of the progression of the Mauser rifle. It was essentially the same as the Belgian Mauser rifle. The rifle was one of the first of Mauser's actual designs and is easily identified by the magazine. Up close, one notes the early Mauser "weak" action. The 1909 was of later design, had a '98 action (the 'strong' one) and the magazine was double stack and flush with the bottom of the rifle.
The cartridge is very similar to the .303 British. Similar, not identical. The two cartridges fire the same diameter bullet of the same weight at about the same velocity. Serious business.
And a delightful example of rifle manufacturing.