Airborne Guy,
Unfortunately, it's Pre/Post status is NOT determined by serial number.
Your rifle is a 329-S. The "S" stands for "Sporter", meaning post ban. But, there is another wrinkle.
Does the "S" appear to be "hand stamped", or does it appear to be "original" from the factory? If it is handstamped, it's still possible for the rifle to be "pre-ban" if the "pre-ban" parts were added prior to 30 Nov. 1990. I believe all "S" guns that originated from the factory are POST ban.
Confusing, isn't it?
I'm sure my response will ignite a bunch or responses, but I'm just trying to share info. - NOT start any fights.
Be safe. Be happy.
Joel N.
"Yog" (in Alaska)
"Molon Labe!"