Originally Posted by Kaintuckee
I What method would you use for inside neck reaming on new brass thatís used in a standard chamber cut to the minimum SAAMI dimension?
Well, the Forster will not work in that situation because the reamer is .003" over caliber. Perhaps like Winchester 69 said, you could figure out what the inside neck diameter is on your fired or sized case and have Forster custom make you one that would be tight enough to inside ream. With inside reaming you do not want to take off much brass.
I prefer the Forster reamers to the K & M mandrels with the cutting tip because the Forster reamer has a cutting edge along it's entire length
as opposed to the K & M which has the cutter only on the leading edge
I have used a friend's K & M cutter and it seems to wander more and score up the inside of the neck much more. Once you get the Forster in all the way you are removing brass from the mouth of the case to the neck/shoulder junction all along the cutting edge which makes for a smoother cut.
If you do not have a tight necked chamber then you should not have to worry about inside neck reaming or do-nuts. The do-nuts will not bear on the bullets unless they bear on the bullets when you insert them in a fired case.