[16952]

I have been using IMR4064 in my 308's and all is well but now I can not find IMR4064 but did find Accurate Arms 4064 but even that is priced off the chart like about $416 for 8 pounds. So with that said has anyone worked up a 308 load using AA 4064 and is one powder as good as the other. Is there a great pressure increase with the use of AA4064 over IMR4064. My understanding is they are not interchangable but I really need to hear this fromexperienced shooters.