Quickload help for 5.56 nato please!

[backwoods83]

I am loading 55grn winchester fmjs in Fed 223 brass for a 5.56 AR, H20 capacity is 29.1 grns, OAL will be 2.235", I will be using Alliant Power Pro Varmint powder and was wondering if someone can find me some data for pressures up to 62k psi (nato spec) instead of the 55k psi (223 saami spec), thanks.

 

[tomt]

My version of Quickload doesn't have Alliant Power Pro Varmint powder.

 

[backwoods83]

They say it identical to RE12 that they discontinued but I do not know that as fact so I guess I will use a different powder, thanks.