This was a water jug test done at 25 yds with my .280 Rem.
154 SST @2950 fps: 92.9 gr retained (60.3%), expanded to .667", recovered in 4th jug.
I've seen performance like this before with SSTs. They seem to separate but stay with each other, if that makes sense. The core was found with the jacket in the 4th jug. A couple of years ago I shot a deer lengthwise with a .308 150 SST and the core and jacket separated, but were lodged in the abdominal muscles about an inch from each other. I'm happy with the performance. Weight retention, expansion, and penetration were all pretty good. I'd prefer that the core stayed in the jacket, but I can't argue with the on game results I've had with SSTs. This was the load I used on my buck this year. It was a 30 yd, high rib shot and complete pass through.
154 SST @2950 fps: 92.9 gr retained (60.3%), expanded to .667", recovered in 4th jug.
I've seen performance like this before with SSTs. They seem to separate but stay with each other, if that makes sense. The core was found with the jacket in the 4th jug. A couple of years ago I shot a deer lengthwise with a .308 150 SST and the core and jacket separated, but were lodged in the abdominal muscles about an inch from each other. I'm happy with the performance. Weight retention, expansion, and penetration were all pretty good. I'd prefer that the core stayed in the jacket, but I can't argue with the on game results I've had with SSTs. This was the load I used on my buck this year. It was a 30 yd, high rib shot and complete pass through.