How far should this gun shoot accurately?
How far can
YOU shoot accurately?
It depends on what you are shooting at. If you have a gun that shoots into 8" at 800 yards and you are shooting at a 4" target you will miss 1/2 the time statistically speaking. Of course 800 yards is a very long way away for a .308. Depending on your elevation above sea level and load, your bullet may drop into subsonic before that point. Do you know how to deal with that?
Accuracy is usually much more dependent on the shooter than it is the gun most of the time. That being said, every gun is different (particularly M1As from Springfield
) and you will have to test it and see. You might have a sub MOA rifle (not very likely) or you might have a 4 MOA (more likely) or even an 8 MOA (upper tolerance allowed for the M14) rifle.
What is the cheapest scope in the $200 price range you would recommend for say 800m?
Ummm..... None. 800m is a LONG WAY to see, and trying to do that with a low glass quality optic is going to give you eye strain fast. Not to mention you will be shooting it on a semiautomatic with a heavy reciprocating action that will probably destroy an optic not designed for it. When it comes to optics, you get what you pay for.
Are there any worthwhile upgrades IE New stock to reduce the recoil felt/comfort?
There are lots of worthwhile upgrades for the M1A and all of them are VERY expensive. The heavier you make it, the less you will feel the recoil and the harder it will be to use from anything other than the bench. Decide what you want to do with it and adjust.
Can I buy a new stock/inexpensive parts to make this look like the socom M1A?
Why does it matter what it looks like? Are you after functional improvements or just something to take pictures of and show off to your friends?
What do you want to hang off of it that you feel you need rails for?
For clarification. I owned a Springfield M1A from 1997 to just last year and my brother has 4 of them now in everything from a wood stock up to a EBR Mod 1.
And I am not accurate at 800 yards, I haven't even bothered to try.