Bullet seating die

US12398988B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12398988-B2
Application numberUS-202318338773-A
CountryUS
Kind codeB2
Filing dateJun 21, 2023
Priority dateJul 31, 2020
Publication dateAug 26, 2025
Grant dateAug 26, 2025

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A bullet seating die for use with an ammunition press to seat a bullet in a case includes a die housing having an ammunition press mount for mounting the bullet seating die on the ammunition press. The die housing defines a bullet receiving space having an open end and a side window in communication with the bullet receiving space. The side window sized and shaped to permit the bullet to be inserted therethrough to position the bullet in the bullet receiving space. A seating stem is supported by the die housing. The seating stem is arranged to engage the bullet to press the bullet into the case when the ammunition press is operated. A spring biases the seating stem away from the open end of the bullet receiving space to permit the bullet to be inserted through the side window and into the bullet receiving space.

First claim

Opening claim text (preview).

What is claimed is: 1. A bullet seating die kit for use with an ammunition press to seat a bullet in a case, the bullet having a first caliber or a second caliber different than the first caliber, the bullet seating die kit comprising: a die housing having an ammunition press mount configured to mount the bullet seating die on the ammunition press, the die housing defining a bullet receiving space having an open end, the die housing defining a side window in communication with the bullet receiving space and sized and shaped to permit the bullet to be inserted therethrough to position the bullet in the bullet receiving space; and a seating stem configured to be supported by the die housing within the bullet receiving space, the seating stem being arranged to engage the bullet to press the bullet into the case when the seating stem is supported by the die housing and the ammunition press is operated; and first and second bullet holders, the first bullet holder configured to hold the bullet when the bullet is of the first caliber and the second bullet holder configured to hold the bullet when the bullet is of the second caliber, the first and second bullet holders being configured to be interchangeably receivable in the bullet receiving space of the die housing, the first bullet holder being interchangeably receivable in the bullet receiving space to configure the bullet seating die kit to seat the bullet when the bullet is of the first caliber, and the second bullet holder being interchangeably receivable in the bullet receiving space to configure the bullet seating die kit to seat the bullet when the bullet is of the second caliber. 2. The bullet seating die kit of claim 1 , further comprising a cap configured to be supported by the die housing, the cap including a seat configured to engage the seating stem when the seating stem and the cap are supported by the die housing. 3. The bullet seating die kit of claim 2 , wherein the cap includes an adjuster configured to move the seat relative to the die housing to set the position of the seating stem relative to the die housing when the seating stem and the cap are supported by the die housing. 4. The bullet seating die kit of claim 3 , wherein the adjuster comprises a micrometer configured to threadably connected to the die housing. 5. The bullet seating die kit of claim 1 , wherein the first bullet holder includes a first bullet retainer arranged to engage the bullet to hold the bullet within the bullet receiving space when the first bullet holder is received in the bullet receiving space, and wherein the second bullet holder includes a second bullet retainer arranged to engage the bullet to hold the bullet within the bullet receiving space when the first bullet holder is received in the bullet receiving space. 6. The bullet seating die kit of claim 5 , wherein the first bullet retainer is resiliently biased by a first bullet retainer spring and the second bullet retainer is resiliently biased by a second bullet retainer spring. 7. The bullet seating die kit of claim 6 , wherein the first bullet retainer spring comprises a first O-ring and the second bullet retainer spring comprises a second O-ring. 8. The bullet seating die kit of claim 1 , wherein the first bullet holder is configured to guide the bullet into the case when first bullet holder is received in the bullet receiving space and the ammunition press is operated, and wherein the second bullet holder is configured to guide the bullet into the case when the second bullet holder is received in the bullet receiving space and the ammunition press is operated. 9. The bullet seating die kit of claim 1 , wherein the first bullet holder is moveable within the bullet receiving space when the first bullet holder is received in the bullet receiving space, and wherein the second bullet holder is moveable within the bullet receiving space when the second bullet holder is received in the bullet receiving space. 10. The bullet seating die kit of claim 1 , further comprising a third bullet holder configured to hold the bullet when the bullet is of a third caliber different from the first and second calibers, the third bullet holder being interchangeably receivable in the bullet receiving space to configure the bullet seating die kit to seat the bullet when the bullet is of the third caliber. 11. The bullet seating die kit of claim 10 , further comprising a fourth bullet holder configured to hold the bullet when the bullet is of a fourth caliber different from the first, second, and third calibers, the fourth bullet holder being interchangeably receivable in the bullet receiving space to configure the bullet seating die kit to seat the bullet when the bullet is of the fourth caliber. 12. The bullet seating die kit of claim 8 , wherein the first bullet holder is configured to hold the bullet when the first caliber is a .223 caliber and the second bullet holder is configured to hold the bullet when the second caliber is a .308 caliber. 13. The bullet seating die kit of claim 10 , wherein the first bullet holder is configured to hold the bullet when the first caliber is a .223 caliber, the second bullet holder being configured to hold the bullet when the second caliber is a .308 caliber, and the third bullet holder being configured to hold the bullet when the third caliber is a 30-06 caliber. 14. The bullet seating die kit of claim 1 , further comprising a spring configured to bias the seating stem away from the open end of the bullet receiving space so that the seating stem is positioned relative to the side window to permit the bullet to be inserted through the side window and into the bullet receiving space. 15. The bullet seating die kit of claim 14 , wherein the spring is configured to be operatively disposed between the seating stem and the die housing. 16. The bullet seating die kit of claim 15 , further comprising a first spring retainer configured to be supported by the die housing, a first end of the spring being configured to engage the first spring retainer. 17. The bullet seating die kit of claim 16 , further comprising a second spring retainer configured to be supported by the seating stem, a second end of the spring being configured to engage the second spring retainer. 18. The bullet seating die kit of claim 17 , wherein the spring comprises a coil spring, the seating stem is configured to extend through the coil spring. 19. The bullet seating die kit of claim 18 , wherein the die housing defines an elongate bore and includes a shoulder within the elongate bore, the first spring retainer being configured to be disposed in the elongate bore and engage the shoulder. 20. The bullet seating die kit of claim 19 , wherein the second spring retainer comprises an E-clip configured to mount on the seating stem. 21. The bullet seating die kit of claim 19 , wherein the first spring retainer is configured to define an end of the bullet receiving space. 22. The bullet seating die kit of claim 16 , wherein the first spring retainer defines an opening, the seating stem being configured to extend through the opening and be slidable within the opening relative to the first spring retainer.

Assignees

Inventors

Classifications

  • F42B33/005Primary

    Crimping cartridge cases on projectiles · CPC title

Patent family

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Frequently asked questions

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What does patent US12398988B2 cover?
A bullet seating die for use with an ammunition press to seat a bullet in a case includes a die housing having an ammunition press mount for mounting the bullet seating die on the ammunition press. The die housing defines a bullet receiving space having an open end and a side window in communication with the bullet receiving space. The side window sized and shaped to permit the bullet to be ins…
Who is the assignee on this patent?
Aob Products Company
What technology area does this patent fall under?
Primary CPC classification F42B33/005. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Aug 26 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).