Throat on my Bartlein is at .080”. I started at 2.370 (OAL) and kept seating deeper until the bolt would close (real friggin’ scientific process), wound up at 2.350” (88eld’s).
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30 grains of Leverevolition barely clears the shoulder, so compression is a non issue. I’ll fret seating depth and maybe switch powders after all my brass is once fired. It’s shooting better than I can anyway.
I monkeyed with neck turning, but they all chamber fine and I’ve been keeping it pretty clean so I quit. I’ve been intentionally leaving a bit of a false shoulder on the premise that it will help the virgins headspace and form out a bit better. Neck is at .255, btw.
My only gripe is that the Redding FL die sizes necks WAY down (out of town and away from my notes at the moment) then WAY back up over the mandrel and I DO feel like I need a neck die with an intermediate bushing. I collapsed the shoulders on several cases so I’ll have that before I start on the next box of brass. Thinking I’ll order a .250 bushing to wind up at .252 OD.
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First 100 yard group I ever shot with the rifle. Five rounds, two holes a half inch apart. That’s about as good as I can do at this point in life and I’m fairly in love with the rifle and the round.