If you have a bench rest to shoot from and you can train the pigs to stand on the 200 yard mark, then you should be able to take a second one before the first one hits the ground. If you zero your scope at 200 yards there's no reason you can't do this in your set up I guess. Sounds like you've got the chops to do it.
Maybe not off the shelf but if you made a big bore specific ldc there is no reason why you cant get it as quiet as any other pcp.