What is your budget, and what is your definition of value?
What are you looking for in the gun?
Go with the Steyr HS 50. I had one for years and no complaints. Great rifle for the money.
After some online window shopping I think I have it down tooooo....
LRT-3 by PGW
The AX50 from Accuracy International
Have you thought of the bushmaster/Cobb BA50? Under 6k and mag fed. also available in Canada.
Any fifty should be accurate at 1000y. I honestly don't think u can buy a bad one these days. Wait...does norinco make one?
Would prefer mag fed
If you are only looking for accuracy to 1000 yds why not just go for a .300 win mag which is more than adequate for 1000+ shots if you are spending the money to get a .50 just to make 1000 yd shots seems like a lot of overkill to me. Unless you are looking to go 2500+yds why waste the money?