Any more info on loading these? I am also playing with the cast bullets, last week I tried a few 200gr with 10gr of trail boss, 66mm COAL and a 3mm drilled flash hole and some federal magnum primers and they shot around 1150fps with 2 a bit higher, looked like one keyholed on target.
Rifle is a 16in barrel Tikka.
At 66mm chambering a round in my rifle is still swaging rifling marks in the bullet however I shortened it up so it is still easy to chamber. Interested in what OAL everyone is using?
Is anyone using any fillers or having issues with inconsistent velocity?
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