2000
In a TCA, if it has letter preceding the serial number, it was made after 1971.
The Thompson Center hawken that I have,has a barrel that is 28 inches long.
On 90% of the guns it is stamped on the right side of the barrel as "Thompson/Center Rochester New Hampshire" and "HAWKEN 45 Cal" along with a serial number on the left side. If not the easiest way would be to go to gunbroker.com or Google and search for Thompson center hawken, compare the pictures and description to what you have.
Roughly between 41 B.C. - 2012 A.D.
You must call TC
100-400 USD or so
You can contact Thompson Center Customer Service through their website for help. They are still in business, you know. BTW, really good rifles.
Yes. I've heard of it.
It's a 54 caliber round ball
You will have to call TC to find out.
No way to tell from just the serial number.