Got to the range this morning, chrono'd some of the Norma MLE 64gr BSB rounds from my 20" 1n7.7 Krieger barrel.
I consider this barrel, to be a fast one... so your FPS may vary.
Note, I try to measure from the "outside edge" of the groups, so subtract .224 from the measurement.
@Molon , FYI
Norma MLE 64gr BSB Average FPS, was 2891fps, ES was 96fps, and SD was 28.7fps. All rounds went bang, and no issues at all.
The 10rd groups I could manage with the 64gr BSB ,.... and while not a very precision oriented bullet ( IMHO ), I will take it for what is is.

The first 3 shoots were that clover leaf... I was hoping I might have a decent group.

FWIW... The Ammo Inc. Blueline 64gr BSB Av. fps, was 2731fps, ES was 156fps, and SD was 44.3fps
Also a 10rd group, Blueline 64gr BSB , ignore the shots above the caliber, those are from one of the Norma groups.