Here is my latest with the 6.5 Creedmoor:
The load is 6.5 Creedmoor, Federal small primer brass, Remington 7 1/2 primers, 44.5 Staball 6.5, Hornady 123ELD bullet.
5 shot group at 100.
Rifle is a Ruger M77, MII SA, McGowen 6.5, 8 twist, #5, chambered with a sample/dummy round loaded with a 6.5 140 grain Barnes Match Burner bullet.
Bullet velocities average about 2930. Accuracy is good. Extreme spreads are just under 30. Projected extreme spreads of bulk loadings with a 95% probability are about 17 fps. Possibility of higher barrel temps making pressures & velocities increase as shown on spread sheet, last 3 rounds fired.
This is a nice load but does not show any advantages compared to the 140 ELDM at 180 fps less at ranges over 350 yards, slightly less drop & shorter TOF but considerably more wind drift at extended ranges. Impact velocities at 600 yards & more are greater/better with the 140 ELD's.
I need to get a comparable accuracy load with Staball 6.5 & 140 ELDM's.
Remington 7 1/2 magnum small rifle primers were used.
The little Rem 7 1/2 primer appears to be a better fit for Staball 6.5 than other small rifle primers.