Whats the optimal freebore for a 6mm Creedmore?

[Rprecision]

What's the optimal freebore for a 6mm creedmore? I'm planning to use 103 ELDX, 108 ELDM, something in that general weight class.

I'm planning to handload but don't want to limit case capacity or end up in pressure problems.

Sammi is .183"
PTG recommended. 130"

What are you guys finding works best?

Thanks

 

[acourvil]

.130 is on the short side if you are shooting heavier 6mm bullets (can’t speak to the ones you specified, I don’t shoot them). But i also think the SAAMI freebore is too long. Last time I had barrels done, I loaded rounds to what I wanted and had the smith adjust it. I think I ended up in the .160- .170 range.