freebore for 68gr barts ultra

[chris308]

Sent a dummy round to PT&G to have a reamer made. I seated a barts ultra so the base is 80% down the neck. The print out says it is .006 freebore. Is this too short? I see many shooters have .020-.050 free bore,what do you guys think?

 

[expiper]

With a .040" FB you will have aprox .120" of shank in the case nk.........do the math....some folks want more case capacilty and some want less....it is up to you....,,,this is with a Bart 68gr ultra.......I like at least .020" fb so the bullet has a cylindrical area in the throat to keep it piloted.....Roger