? on bullet nose

[Buffalow Red]

i bought some bullets off of ebay for good price but was wondering how wide the flat nose needs to be to use in tubeular mag rifle?
these are the size of the large pistol primers almost exact

[Dick Dastardly]

The reason for the flat nose is to prevent chain fire in the tubular magazine guns.  The smallest flat nose on a Big Lube™ bullet is on the Snakebite.  It's absolutely safe for ammo that uses small pistol primers.  If the flat nose is smaller than the outside diameter of the primer enough that it could dent the primer during recoil, then there's a remote chance for a chain fire in tubular magazine guns.

All that said, I've not heard of flat nose bullets setting off primers in tubular magazine guns ever.

For many years the venerable Winchester 30-30 lever guns have been used with round nosed and flat nosed bullets.  I've never heard of a chain fire in them.  Remington made RNSP bullets for them and so did other ammo makers.  The 30-30 recoils more than our SASS main match pistol caliber guns.  If it doesn't set off a chain fire with RNSP bullets I doubt that a small flat point bullet would either.

Put the flat nose up next to the primer and ask yourself, could this set off a chain fire?

DD-DLoS

[Buffalow Red]

thanks