Originally Posted by
PipIstrelle
I quickly ran the figures through Gordons Reloading Tool , not having your case volumes at hand I used the stored averages within the programme the results will not be 100% accurate .
Predicted pressured with a C.O.L of 2.800" is 53,498psi with 104% case fill and a C.O.L of 2,700 gave 57,842psi with 107% case fill ,. Max allowed pressure is 60,191 psi for the 260 .Predicted velocities are 2800 fps and 2849 fps using a 24" barrel .
Remember , these figures are only a computer simulation and cannot replace proper load development .
Given the simulation and lack of pressure indicators all would indicate a safe load .
Hope this has been of some help .