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Thread: Broken platinum nipple

  1. #1
    Boolit Mold
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    Dec 2018
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    Broken platinum nipple

    Hi all, a friend of mine had a problem with a platinum nipple, it was new and never fired before. The hammer of the rifle, a Pedersoli Tryon Creedmoor, was damaged. Never seen a similar problem before, can the platinum nipples be used safely?

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  2. #2
    Boolit Buddy
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    I think you need to post more details of what exactly happened and how.

  3. #3
    Boolit Mold
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    The platinum nipple was used for the first time on the Tryon Creedmoor, the platinun insert jumped away and the tumbler was broken.

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  4. #4
    Boolit Master
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    It had an insert inside the nipple? No, I would not shoot anything with an insert that could blow out the top. All good nipples are one piece. Some say the longest lasting are made of Ampco. The stainless steel ones from TOTW have been great to me.

  5. #5
    Boolit Buddy arcticap's Avatar
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    Quote Originally Posted by Claudius View Post
    The platinum nipple was used for the first time on the Tryon Creedmoor, the platinun insert jumped away and the tumbler was broken.
    The hammer blew back with enough force to damaged a lock part?
    When the insert blew out, a lot more gas than normal escaped through the nipple?
    I didn't realize how those platinum cones were made, but thought that a lot of long range competition shooters used them.
    He should probably contact the vendor or the maker to report the incident and see if they'd be willing to own up to paying for the damage.
    Or at least get some free replacement nipples.
    When defective cartridge ammo damage guns they pay for repairs and want the ammo returned for inspection.
    While defects can't be totally eliminated, thankfully no one was injured.
    Where did he buy the nipple?
    That could help warn others to be aware, and put the maker and the vendor on notice.
    If someone else gets hurt after they're given notice, then there can be a lawsuit.
    Last edited by arcticap; 06-30-2020 at 02:01 PM.

  6. #6
    Boolit Mold
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    That defective platinum nipple is about 20 years old, so my friend doesn't remember where he got it.
    Yes, and yes to your first 2 questions. Fotunately nobody was injured by this very bad accident.

  7. #7
    Moderator Emeritus / Trusted loob groove dealer

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    It doesn't make sense that would break a tumbler. Something else is involved. I've seen nipples completely blown out of rifles without doing that.
    The solid soft lead bullet is undoubtably the best and most satisfactory expanding bullet that has ever been designed. It invariably mushrooms perfectly, and never breaks up. With the metal base that is essential for velocities of 2000 f.s. and upwards to protect the naked base, these metal-based soft lead bullets are splendid.
    John Taylor - "African Rifles and Cartridges"

    Forget everything you know about loading jacketed bullets. This is a whole new ball game!


  8. #8
    Boolit Mold
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    Dec 2018
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    It depends by how the nipple is blowing out, the pressure on the hammer is extremely high and a broken tumbler is a well known consequence.

  9. #9
    Boolit Master fouronesix's Avatar
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    To even begin to get to a root cause, agreed.... more info is required. Sometimes a first clue is, "a friend had this, that or the other happen".
    Trust but verify the honeyguide

  10. #10
    Boolit Bub
    Join Date
    Dec 2019
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    Ampco nipples are well known for longevity, but if you shoot big bullets (450 grains and up) on large powder charges (70-120) from smaller bore rifles like.40 and up, the Ampco nipples won’t last as long as the platinum lined versions. Nipple erosion wreaks havoc on accuracy at long range which is the purpose of such rifles.

  11. #11
    Boolit Buddy
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    Quote Originally Posted by fouronesix View Post
    To even begin to get to a root cause, agreed.... more info is required. Sometimes a first clue is, "a friend had this, that or the other happen".
    Agreed. Fwiw, the platinum lined nipples I use have the insert installed at the threaded end of the nipple. Looking at that it seems impossible for an insert to blow out of the rifle completely thru the nipple and towards the hammer, without the nipple itself exploding...

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check