Did you try it w/ all hand cranked machines? I'm asking because if you didn't then you made a false statement. As I said you mentioned a product by name that you didn't use. What your post should say is that you have a job that can't be performed by the CH4D tool.
I know I'd be mad if I was selling a product and it was being talked about in a poor light for no reason. You can't compare the CH4D tool to the UCT because they are in different leagues. Just as the UCT and the powered one are in different leagues. It bears repeating that you mentioned a product by name that you didn't use to perform the job. This is what the issue is. If you had, and it failed, it wouldn't be an issue.
I will make you an offer. I will buy some of those bullets off of you and pay shipping to me. Sell them to me at a profit. I have no need for them since I don't own a 50cal anything. I will make a video of attempting to cannelure them w/ the UCT. If it doesn't work then we know for a fact. I have no association w/ Chuckbuster other than being an owner of his tool. I'd hate to see the name a product I made disparaged for no reason.