Thread: 6.5x55 SE Sanity Check

Hi, I just getting started loading for a 6.5x55 SE but I'm having doubts about some of the load data.

I will be using 129gr Interlock SP to start with and ADI AR2209 and AR2213SC powder.

The problem is determining a maximum load. Looking at ADI's data, it's significantly under pressure. ADI list maximum pressure as 46,000CUP (~51,000psi). CIP list the maximum pressure as 55,1100psi, an 8% increase.
ADI 129gr Interlock SP:
2209 45.5gr
2213SC 48.5gr

For comparison sake I had a look at Alliant's Reloader 19 and 22 data. For the commercial action the maximum pressure is listed at 58,000psi (+13.7%).
Alliant 120gr Speer SP:
RL19 @ 51,000psi 41gr
RL19 @ 58,000psi 46gr +12.2%
RL22 @ 51,000psi 42gr
RL22 @ 58,000psi 46gr +9.5%

2209 and RL19 have a similar burn rate as do 2213SC and RL22. Is it sane to think an 8% increase 2209 (49.1gr) and 5% increase to the 2213SC (52.4gr) will result in a pressure around 55,000, but still be below 58,000psi?

Any help would be greatly appreciated.