Sellier & Bellot Handgun 357Mag 158gr Lead Flat Nose 50 Per Box/20 Case SB357L

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Sellier & Bellot Handgun Ammunition — .357 Magnum 158gr Lead Flat Nose (SB357L / UPC 754908500758)

Pack: 50 rounds per box, 20 boxes per case

The Sellier & Bellot (S&B) Handgun load in .357 Magnum with a 158-grain Lead Flat Nose (LFN) projectile is a centerfire revolver cartridge intended for firearms chambered in .357 Magnum. This product is identified by model/sku SB357L with UPC 754908500758. Packaging is listed as 50 rounds per box and 20 boxes per case, totaling 1,000 rounds per case.

Cartridge: .357 Magnum

The .357 Magnum cartridge is used in revolvers and certain lever-action carbines that are chambered for .357 Mag. Because .357 Magnum firearms vary in barrel length, cylinder gap (for revolvers), and sight regulation, performance and point-of-impact can differ between platforms. Users should confirm:

• The firearm is marked for .357 Magnum

• The firearm is in proper mechanical condition (timing, lockup, forcing cone condition for revolvers)

• Ammunition choice aligns with the firearm manufacturer’s guidance

Some firearms chambered in .357 Magnum can also fire .38 Special; however, that depends on the firearm and should be confirmed with manufacturer documentation.

Projectile: 158gr Lead Flat Nose (LFN)

This load uses a 158-grain lead flat nose bullet. Flat nose lead projectiles are commonly used for:

• General range practice

• Revolver function testing and familiarization

• Certain target applications where lead bullets are allowed

A 158-grain weight is a traditional .357 Magnum bullet weight and may offer a familiar recoil and point-of-impact profile depending on the firearm and sights.

Lead Bullet Considerations

Lead bullets can behave differently than jacketed bullets in terms of:

• Barrel fouling characteristics

• Smoke and residue levels depending on powder and lubrication

• Performance in polygonal vs. conventional rifling (platform-dependent)

Users commonly monitor:

• Lead buildup in the bore and forcing cone area (revolvers)

• Cylinder face and top strap residue (revolvers)

• Cleaning frequency and solvent selection

Some indoor ranges restrict unjacketed lead ammunition due to ventilation and lead exposure considerations, so verifying range rules is recommended.

Packaging Configuration

• Rounds per box: 50

• Boxes per case: 20

• Total rounds per case: 1,000

This bulk case configuration is useful for training cycles, inventory management, and maintaining consistent lot use for practice.

Compatibility and Safety Notes

For safe use:

• Use only in firearms chambered for .357 Magnum

• Inspect cartridges before use for dents, corrosion, or damage

• Follow manufacturer recommendations for firearm maintenance intervals

• Discontinue use and consult a qualified armorer if abnormal pressure signs or functional issues occur

When using lead bullets, routine cleaning is particularly important to maintain accuracy and reduce excessive fouling.

Storage and Handling Guidance

Best practices include:

• Store ammunition in a cool, dry location

• Keep in original packaging where possible for lot identification

• Avoid exposure to oils, solvents, and moisture

• Wash hands after handling lead-containing ammunition components, and follow appropriate hygiene practices

Product Identification

• Brand: Sellier & Bellot

• Line: Handgun

• Cartridge: .357 Magnum

• Bullet Weight: 158 grain

• Bullet Type: Lead Flat Nose (LFN)

• Rounds per Box: 50

• Boxes per Case: 20

• Model/SKU: SB357L

• UPC: 754908500758

The End