I read somewhere on this forum about laupa brass being to tight to chamber, but when using Remington brass, was fine. Curiosity: I called Shieln asking about the reamer they used for their SS select match barrels in 260. They referred me to Pacific Tool whom provide their reamers. I spoke with Kathleen. She told me they had provided two reamers to Shieln, but did not know which one they used. She then e-mailed me the specs on both reamers. One reamer was the regular 260 Remington and the other was the 260 Remington tactical. I then called back to Shieln and they looked at their spec sheet on their current reamer. They are using the 260 Remington tactical.The body, tpi, pilot cal, groove basic brass dimensions are all the same. The neck tpi,throat tpi, bore,resizing ND, and margin have different dimensions. Note: the above are facts.
I did not ask about more details as to what any of this meant, as far as reloading goes, as I felt I had shown enough ignorance for one day.
If anyone can follow up on this with an explanation I would appreciate it. Facts or opinions.
( if not, I can do some more digging) P.S. I do not know how many different types of reamers there are or which barrel makers use which reamers. (more ignorance)
By the way, both ladies at both companies were very polite and provide excellant customer service. IMO