The Gigantic ".50 Sharps" Caliber Brass(140 Gr. Blk.Pwdr. Cap.) Is Only An Incredible .008 Thick At The Case Mouth So It Would Definitely Not Be Wise To Remove Any Metal From It Unless Absolutely Necessary* * *
I'll Always Suspect That The Practice Of Rolling Those Huge(700 Gr.) Lead Bullets In "Kimberly" Stout Paper Before Seating Them In The Case Mouth With The Old Original "Lyman" Pliers-Press Was A Measure Which Was Necessary To Prevent The Case Wall Grip-Pressure On The Bullet From "Telescoping" Such Frail Brass.
