THESE ARE BEYOND MAXIMUM BOOK LOADS. DO NOT ATTEMPT TO RECREATE.
As promised, I'm reporting back after starting using Longshot for my Major9 loads.
I loaded two different loads, both 124gr MontanaGodl CMJ, OAL 1.150, .379" crimp, Federal small rifle
primers at both 6.2gr and 6.6gr (.53cc and .57cc of powder, respectively.) The burn was clean, recoil not harsh, and both the bore and comps looked cleaner after I shot the longshot than beforehand. I don't have any speed data on them yet. Book maximum is 5.7gr at 1.090, and a 165pf at 1.145-1.150oal according to the enos forums major9 spreadsheet should be around 7.2-7.4gr. My loads were nearly identical to those listed in the spreadsheet of making 157pf. I was happy with the burning performance of longshot.
However, I could not make a consistent throw with the adjustable charge bar in my Lee Pro autodisk powder measure due to the rather large granule size of the longshot powder -- I had to use the static-sized disks instead to get a consistent throw. The disk holes are perfectly round, while the adjustable charge bar is football shaped at those powder throws, which leads me to believe the narrow corners in the adjustable bar don't fill consistently. If I don't get better performance widening the adjustable bar in the +7.0gr range (I was working mainly in the upper 5gr range when I discovered the anomaly) and can't find a static disk size that makes 165-170pf, I'll have to switch to another powder to make major safely.
I'll send another update when I get some chrono statistics.
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