I'm saying that he couldn't have seen CE573 on the televised HSCA hearings ("The bullet used and pictured on the TV by US Senate G. Robert Blakey
Committee on Assassinations") as his letter to the Attorney General claimed. Given that he uses "any unfired bullet in shape or form" as a reference in the same letter, I'd say he saw CE399 and assumed it was the letter fired at him. By t1979, he was a perverted, 70-old geezer who'd been groping random people around White Rock Lake (and had been twice arrested for it), so he likely wasn't particularly straight in the head by then.
So you are calling him a liar. Prove it. He was a retired general so he certainly knew steel-jacketed ammunition from copper-jacketed ammunition.
In case you missed it, there is NO chain of custody for CE 573 so it is worthless as evidence.