Update:

I finally got the Garand out with some test rounds to see if the Schuster plug was worth it.

We're Sneaking In

Bottom line: It took 6 rounds to get the plug dialed in, going from fully open and closing it a quarter turn per round. I then turned it on my gong at 200 yards and rang it 24 for 24.

Genesis 9:2-4 Ministries Lighthearted Confessions of a Cervid Serial Killer