The thing is i noticed that the factory ammo contacts all of the primer, it is smaller then the primer, not largerLike Bassmaster says, 170 grain FP's are made for tube mags. Nothing to worry about. The flat bit is bigger than the primer pocket and factory primers are seated properly. Loading .30-30 is something Winchester has been doing without getting sued for over 100 years.
The Speers a SPFN? Those are made for use in a tube mag too. Just be sure the primers are seated a tick below flush and you'll be fine.


















































