I'm going to add my 2 cents to this thread, as I have some experience with this bullet.
The "flying ashtray" was a moniker given to the Speer 200gr JHP by various gun mag writers back in the 80's. It was available as a bullet Speer part#4477 or in the Speer Lawman factory ammo part#3965(25 cartridges to the yellow plastic box.)
These rounds were touted as a good stopper, but perhaps more importantly, they were the best test for a properly throated 1911 in 45ACP. If your 1911 would reliably feed and shoot this round, they would shoot any load.
For you guys that have some of these discontinued bullets to play with......the factory Lawman cartridges had a COL of 1.153". My most accurate handload was with 7.0gr of VV-N340. This was the max loading from Speer Manual#12 and chrono 940fps in my Colt Combat Government 5". I don't know why Speer stopped making these, but I'm sure that these bullets would be a superlative stopper in a 45AR +P loading launched from the 625 platform. I still have a bunch of these........I'm thinking this round has 1100 fps potential with the right powder from a 5" 625. That should be a nice thumper!