RE: Bullets for a 50 cal Hawkin TC replica
A Thompson Center Hawkins is a much sought after rifle by many Black Powder shooters. Besides being a great shooting rifle for the most part, if you want to make it into a super roundball shooter, get yourself a Green Mountain Drop in Barrel in 1:70 twist. Depending on the size of the flats, you can get a .54 caliber in the 15/16th range and a .58 caliber in the 1" flats. Both have teriffic knock down and very accurate. I have a .58 caliber Green Mountain Barrel and a .62 caliber that fit into my rifle.
Enjoy your rifle..... T/C has a great warranty and customer service department should you ever need assistance with anything.