I have a question about the TC 54 Hawken. When did they stop making the heavy 1" across the flats barrel and why? I was lucky enough to find a unfinished stock and all the hardware and lock and triggers a couple years ago for $100 it has a 1" channel but I also found a TC Hawken barrel 54 caliber 1" across the flats that is practically new. So new that it looks like it was unfired for $125 it's heavy but so well balanced you don't notice the weight when aiming. I'm curious about when they stopped making the bigger barrel. Any help would be greatly appreciated