I've developed a fairly accurate load with my rifle using IMR-4350 and the 105 Amax in my .243 Win.
I'm switching to H4350 because of less temperature sensitivity.
I found two pounds of H4350 yesterday locally. So im starting a new load work up.
What charge weight do you recommend I start my workup at?
My Hornady manual shows a starting charge weight of 38.3gn and a max of 41gn.
Hodgdon's data online shows a starting charge weight of 35gn and a max of 37.5 so I'm a little confused as to why they are so much different.
I'm loading for the 105amax in Lapua brass seated at 2.800" OAL with CCIBR2 Primers.
Currently I'm preparing to load these five charge weights.
Quickload shows my max pressure if 54,000 at 41gn so I'm fairly comfortable knowing I'm not pushing the limits too much, but the data from the Hogdgon website with a max charge weight of 37.5gn has me second guessing myself. I assume it's because of a different seating depth that was used from the Hodgdon data.
Am I ok to go ahead with the 5 charge weights I listed above?