Use whatever you like, but I've found Lee's with the neoprene O ring to be first rate. Glenn Zediker who wrote Reloading for Competition recommended using Lee's arguing that they allowed the case/round to self center in the die...a little wiggle room as it were. Finished round run out on my 600 yd prone slow fire rounds is always less that .004"....important at that distance. Best Regards, Rod
Our Flag does not fly because the wind blows against it,
It proudly waves because a soldier's dying breath blows upon it.
USAF Forward Air Controller, 5th Spl Forces,
An Loc, lll Corps, RVN, 69-70, Vietnam Vet '69-'73