for a sporter its not out of the question, or even a scout, but id recommend a 9130.the better idea for distance and accuracy is the spotter setup, but it is going to be work and could start getting pricy.
with a solid scope+ mount i can say you can do your goal easily on a stable mosin nagant. 9130 is best, i feel because you can get alternatives stocks available as well as additional parts for it.
ive been working on my 9130 as a project target shooter recently, some good references on my thread on it, there from both me and other user inputs into the project. the current project is on page 4 --> 6 of the thread. hopefully this helps as the project exists as a source for mosin users.
a 360 view video of rifle
http://www.youtube.com/watch?v=FMSXYrWwyC0
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