Made it to the range this AM, chrono'd some various rounds and shot groups.
ZERO function issues, 100% reliable
The AAC / PSA Sabre Blade Black Tip bullets are similar in construction to the Sierra TMK.
This thread isn't about the SBBT's terminal performance. Ballistic gel tests concerning that are coming as/per Jamin w/ PSA
Rifle is a 20" 1n7.7 twist Krieger barrel. ( I consider this to be a "fast" barrel, so YMMV ) 100yds, Benched , bagged, scoped, etc.
The 75gr AAC SBBT ( lot # SCL2CF081 ) chrono'd at an average of 2704fps, ES of 39fps, SD of 11.0
The first 10rd group is great, I must have aligned all the Shooting Gods stars. Lol
Next 11rds..( oops ) still darned good for the price.
Next 9rds, again oops...
The AAC 62gr SBBT ( lot # SCL1CF062 ) chrono'd at an average of 2997fps, ES of 90fps, SD of 32.3
10rds
10rds... much more horizontal group, I will blame some of that on me.
All in all, I am quite happy with both. ESPECIALLY concerning the price. ( Thank You @JMan_JJE )
I will order more of the 75gr SBBT for sure, I like heavy for caliber 5.56 ammo.