08-19-2020, 02:58 AM
That’s been my feeling all along, the freebore I guess it’s called. Anyway the 6arc has a 1.5* slope after the freebore so that most bullet ogives will work. (Correct my terminology if wrong). See the saami drawing. Those transverse stripes look pretty bad imo, now I’m not a gunsmith however. But a brand new barrel?? Come on.
There’s supposed to be 0.090 straight freebore then 0.125 sloped at 1.5* (*= degree sign).
You may or may not have the 0.090 before the tool chatter starts, but I’d bet some Dunkin’ Donuts you don’t have the proper sloped portion.
In my faxon the 103 can go out to 2.280 iirc but it has the sleeker ogive profile.
There’s supposed to be 0.090 straight freebore then 0.125 sloped at 1.5* (*= degree sign).
You may or may not have the 0.090 before the tool chatter starts, but I’d bet some Dunkin’ Donuts you don’t have the proper sloped portion.
In my faxon the 103 can go out to 2.280 iirc but it has the sleeker ogive profile.