So I figured I would update here for those using the 6.5 PRC as I am currently using this cartridge in a hunting rifle with a 24” proof prefit. Due to the high velocity and possibility of close shots I am using mono’s to prevent bullet blow ups but my 7.5 twist proof limits me to the lighter monos. Since the Hodgdon data for lighter bullets only uses the same slow powders as the 156’s I have been doing testing to determine what the upper limit would be with a faster powder and so far StaBall 6.5 has produced significantly faster velocities though I have only done limited testing.
Currently I am using the 122gr Lehigh Controlled Chaos bullets with good success and started with the 122gr PVA Cayuga bullets to see how they performed since I was out of Lehighs.
View attachment 7332913 So far I have run from 50gr all the way up to 58.9, primers are slightly flat at the top end but there are no extractor marks on the case head and bolt lift is normal.
Does anyone know if the newQuickLoad update has StaBall 6.5 as I would like to tweak that to see what kind of pressure I’m at.