Absolute Hammer load data

25-06 Remington
90 AH
TC Encore 26"
Norma 2X bumped .002" 1/4T Lee FCD
Federal 215M
3.227"

Reloder 15.5
51.0: 3607 fps
51.5: 3644 fps
52.0: 3673 fps
52.5: 3722 fps
53.0: 3748 fps
No signs of excess pressure

Reloder 16:
53.1: 3520 fps
53.6: 3555 fps
54.1: 3584 fps
54.6: 3615 fps
54.6: 3658 fps
No signs of excess pressure
 
Tikka 243win 16"

69gr AH
COAL 2.655" (3 bands in the neck)
Starline brass
Fed 210
Varget
42 3380fps 👍🏻

43.5 3457ej mk

Revisited this today except with necked down lake city brass everything else is the same besides that. Looks I should be able to run these around 3450fps with better brass. Not bad for a suppressed shorty.

43 3357fps
43.5 3414
44gr 3462
44.5 3516
45gr 3581 ej mk
 
Mr. Jon, is that extremely slow for that cartridge and bullet weight ?
I'd certainly say so considering that a boring old 270 can get awful close to that performance out of a shorter barrel too. Perhaps this isn't the optimal powder for that bullet and cartridge.
 
I was thinking 3600 going in, but then N560 was a total shot in the dark. QL is no help with the AH and the only data published here for this combo used RL33 which I would have also thought to be too slow. I looked at the 26 Nosler data for this bullet and they also used typical slow burning magnum powders (7828, RL26, H1000, etc.). Same goes for Hornady data for the 127 Barnes LRX.

On the plus side, four of the seven charge weights shot in the .3s with the worst being just under .7. Sort of like kissing your sister.
 
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