there are several for sale on gunbroker.com and auctionarms.com you will need to know the maker and caliber of your stock to get a proper fit.
50-175 usd
Depending on the maker you can remove the breech plug and of course the sights and underlug. It is not an easy task to remove the plug and without proper tools usually results in a buggered up barrel or plug. You would need a barrel vise and a breech plug wrench, some heat and penetrating oil. I would recommend taking it to a gunsmith in your area.
sure they are both 50 grain.As long as they fit in your barrel your fine.
Varies according to when made.
There is a .50 replacement barrel on Gunbroker.com
The Thompson Center hawken that I have,has a barrel that is 28 inches long.
New Englanders have a 1:48 twist designed for sabot or round ball.
The 60 cal. has a bigger barrel.
50-1500 depending on specifics
I have a 50 cal black powder pistol. on the barrel it shows Connecticut valley arms 50 cal spain #003401. Is this gun worth anything? Thank you Nancy Shepard
If its a real Hawken, and most are not, then its almost priceless. The vast majority of the real authentic Hawkens are in museums or private owners who can trace their history back 150+ years.
Earlier versions had problems with the lighter barrels overheating.