This is a FIVE shot group, the one on the lower left was the fouling shot. It measures just a hair over 1-1/2" for 5 shots, the first three were right at 1" with no swabing between shots. This has been the typical results I get out of these 460gr No Excuses Conicals. These are sized at .503 and are basically a slip fit with very light engraving while loading. I have also discovered that the OLD .503 430gr White Super Slugs shoot very well out of my Huntsman but ran out of daylight for further testing. Will be doing a little more testing as weather and work permit.