Post by miked on Mar 1, 2023 20:10:30 GMT -5
The bullet still has to obturate in a sabot otherwise they drill and shred regardless of knurling which all my bullets get. The Lehigh are knurled drom the factory. I would post pictures of the before and after sabot results but this site doesn't let you from a phone. Non-annealed 240 grain CEB was 1600fps at 20yds and if it happened to hit my 4x4' backstop at 50yds they punched key holes. After annealing they were at 2600fps with same charge and punched the same hole on three shot groups so tight I had to check the back of the target.
Because CEB and Lehigh are so hard they will not obturate from the factory which creates too much pressure on the side of the sabot blowing them out and they come out in shreds, often with a perfectly punched out sabot bottom. There is a really good CEB thread over on Dougs where CEB was working with several members to get these things improved to shoot in our guns. No matter what they always had to be annealed to shoot.