I set up a young man with an Omega loaded with the 250 Monoflex in the supplied sabot over 100 gr BH209 for the Illinois youth season a month ago. During practice, the load shot 1" groups at 100 yd for me and he was consistently shooting <3" groups. He took an adult doe with a 100 yd broadside shot. We had practiced for center lung shots but he actually hit her just in front of the point of the shoulder, understandable for his 1st shot at a live deer, shattering the short ribs on entry and exit and taking out the top of both lungs.
I was watching the shot with binoculars to she how she reacted in case we had to track her but she dropped like a rag doll, never moving a muscle. You couldn't ask for better performance from a bullet.