6 dasher free bore size?

[Mja454]

Hey guys doing my first 6 dasher build. Going to be using alpha brass with 105 bergers. What size would best for the free bore. I see alpha has multiple different reamer free bore sizes just curious what the best size would be for my choice of brass and bullets. Plan on using Atlus in Florida to do my barrel. Thanks guys

 

[spife7980]

104-120

 

[b6graham]

proof's reamer is .125 and it works well

 

[Mja454]

Thanks guys for the knowledge