Greg, a couple local shooters bought several used Trophys from a deceased shooters estate. A couple bolt handles have fallen off, and I haven't seen one rifle perform well. They certainly look like a Hall clone, but looks don't make it shoot.
I don't think there is any design approved or disapproved. Some older ranges still have wooden benches/legs. If benches are not stable, shooters would probably not show up, or spend their day b!tching about them.
I bought Bore Tech rods when they came out, and after a short time the coating came off. I called them, they would not replace them. Never again. I have a pair of coated Dewey's that are close to 30 years old and the coating is still there.
I shot a 6.5/06AI in long range for a while, and I used 30/06 brass. Necked them down then ran them in the 6.5/06AI sizer until I had a snug bolt close. Then fire formed.