I have a 52 cal knight disc extreme that I hunt elk with, love the gun and shooting the smoke pull, but I have it sighted in with these big all lead 530 gn.(110gn of 777) Bullets that where the only ones offered at the time of purchase (2000) I believe. I know I can use jacket sabots now in WA but don’t want to waste $300 to determine a good load. If any one has any ideas the help would be greatly appreciated. Thanks