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J4 Precision Jackets

J4 Jackets, 30 Cal, 1.000" Long, (1,000)

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SKU:
BLBG0210
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Now: $233.99
Was: $259.99
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Description

J4 Precision Jackets, 30 Cal, 1.000" Long, Pack of 1,000

Unmatched Precision for Elite Bullet Makers

J4 Precision Jackets set the standard for bullet jacket quality worldwide, offering unparalleled consistency and concentricity. As the preferred choice of Berger Bullets and elite custom bullet manufacturers, J4 Jackets are essential for those who demand the highest accuracy in their shooting components.

Superior Consistency in Every Lot

Unlike mass-produced bullet jackets that claim tight tolerances, J4 Precision Jackets deliver on their promise with every lot. Each jacket exhibits a wall thickness variance of .0003" or less, ensuring the highest level of precision and performance for your custom projectiles.

Designed for Ultimate Performance

Whether crafting bullets for varmint hunting, target shooting, or tactical applications, J4 Precision Jackets enable shooters to achieve the tightest groupings and most consistent shots. With a total indicated runout (TIR) capability of +/-.0001.000", J4 Jackets are the cornerstone of accuracy in bullet making.

Product Specifications

  • Caliber: 30 Cal
  • Length: 1.000"
  • Quantity: Pack of 1,000
  • Wall Thickness Variance: .0003" or less
  • Application: Varmint, Target, Hunting, Tactical

Achieve Unparalleled Accuracy

For custom bullet makers who refuse to compromise on precision, J4 Precision Jackets are the ultimate component. Elevate the performance of your custom bullets and experience the pinnacle of shooting accuracy with J4 Precision Bullet Jackets.

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Additional Information

Caliber:
.30 Cal
Length:
1.000in
Quantity:
1000
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1 Review

  • 5
    Great quality jackets!!

    Posted by Ammosmith on Jul 14th 2026

    I bought these jackets for a customer request for a .308” flat base hollow point to duplicate the M2 Ball weighing 150 grains. I’m using a 8S ogive point forming die. This is a secant ogive profile. The jackets are very consistent in length and weight. There’s a small variation in weight…which is almost always the case with all jackets. The variation is about .08grains (8 hundredth of a grain). I match the core weight to the the jacket to get it to within .03 grains of tolerance. They form the point extremely well with no folding or cracking (this can happen depending on how hard or soft the jacket is). Getting 1.000” jackets is not easy and Bullet Central has them and they have a good supply of them as well. I will be making other bullet styles with these such as soft points, tipped long range bullets and other variations as orders come in. Jace has been immensely helpful and patient with my orders. I highly recommend these jackets for bullets weighing from 145 grains up to 208 grains for the tipped version I make. They are absolutely beautiful to to the eyes. No tarnish or crud on them. They are ready to form out of the bucket.

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