SinterFire Special Duty (SD) .40 S&W – 125gr Lead-Free Frangible Hollow Point
Reduced Ricochet & Barrier Splash • Lead-Free Projectile • Duty-Tuned Terminal Performance
Packaging: 20 Rounds per Box / 10 Boxes per Case (200 Rounds)
SKU: SF40125SD • UPC: 856086004599
When your defensive ammunition has to balance performance, safety, and environmental stewardship, reach for SinterFire Special Duty (SD) .40 S&W 125gr Lead-Free Frangible Hollow Point. Built on SinterFire’s proven compressed, lead-free frangible core technology, the SD line is engineered for reliable expansion in soft targets while helping reduce ricochet and splashback on hard surfaces. The result: a modern, clean-shooting duty/defense cartridge that performs where it counts—at home, on the job, or at the range.*
*Always follow local laws and your agency/range policies for ammunition selection and use.
Why Choose SinterFire SD .40 S&W 125gr?
Lead-Free Frangible Hollow Point (LF/FHP)
Sintered, lead-free construction is designed to disrupt on steel or hard barriers, reducing the risk of ricochet/splash when used correctly—while the hollow-point nose geometry is tuned for purposeful expansion in soft mediums.
Cleaner Training & Carry
No lead core means a cleaner indoor shooting environment and easier compliance with ranges that require lead-free ammo—perfect for high-round training that mirrors your carry load.
Consistent Feeding & Function
Carefully profiled ogive and precise component assembly support smooth chambering in most .40 S&W duty pistols and PCCs.
Balanced Recoil & Control
The 125-grain load offers a manageable impulse for fast follow-up shots and tighter accountability—ideal for defensive standards and qualifications.
Case-Quantity Value
Convenient 10-box case (200 rounds) lets you test, train, and carry the same load—improving real-world confidence.
Safety Note: Frangible design helps mitigate, not eliminate, ricochet risk. Use proper targets/angles/distances as defined by your range.
Key Specifications
Brand / Line: SinterFire — Special Duty (SD)
Caliber: .40 S&W
Bullet Weight: 125 grains
Bullet Type: Lead-Free Frangible Hollow Point (LF/FHP)
Cartridge Use: Defensive/Duty + Lead-Free Training
Packaging: 20 rounds/box • 10 boxes/case = 200 rounds
SKU: SF40125SD
UPC: 856086004599
Performance You’ll Notice
Purpose-Built Defensive Design
The SD projectile’s frangible, lead-free composition is engineered to transfer energy rapidly in soft targets while reducing hard-surface splash, supporting use in environments where over-penetration and ricochet are key concerns.
Reliable Function in Modern Platforms
The uniform 125gr projectile, quality case, and clean-burning components support consistent velocity and smooth cycling across a wide range of .40 S&W pistols and pistol-caliber carbines.
Cleaner, Lead-Free Confidence
Perfect for indoor ranges and training programs focused on air-quality best practices—especially important for instructors and high-volume shooters.
Ideal Use Cases
Home & Personal Defense: Duty-oriented load with reduced hard-surface splash characteristics.
Agency/Professional Users: Aligns with lead-free policies while preserving defensive terminal performance.
Training & Qualifications: Run the same bullet tech you carry—build familiarity and confidence.
Indoor Range Practice: Lead-free construction helps meet facility requirements.
Best Practices & Compatibility
Firearms: For SAAMI-spec .40 S&W pistols and PCCs. Function-test any new load in your firearm before carry.
Targets: For steel, follow range-approved distances/angles designed for frangible ammunition.
Use Case: SD is defense-focused; confirm your point of impact and reliability with your specific sights/optics setup.
Frequently Asked Questions
Q: What’s the difference between SinterFire SD and common FMJ frangible?
A: SD is a lead-free frangible hollow point built for defensive performance, not just steel practice. It’s tuned for expansion in soft targets while retaining the reduced-ricochet benefits of frangible construction.
Q: Is this safe for indoor ranges?
A: Many facilities prefer or require lead-free ammo. Always verify your range’s rules, but SD is an excellent choice where air quality and splash mitigation matter.
Q: Will it run in compact pistols and PCCs?
A: The profile is designed for reliable feeding across platforms. As with any defensive load, perform a function test in your firearm.
Q: Is frangible ammo less effective?
A: SinterFire SD is engineered for defensive use, different from practice-only frangible. It’s designed to expand in soft media while offering reduced splash on hard surfaces.
Q: How many rounds come in a case?
A: 200 rounds total (20/box × 10 boxes).
SEO Highlights (Quick Scan)
SinterFire Special Duty (SD) .40 S&W 125gr lead-free frangible hollow point
20 rounds/box, 10 boxes/case (200 rds) — SKU SF40125SD, UPC 856086004599
Reduced ricochet/splash, cleaner indoor shooting, defense-oriented expansion
Ideal for home defense, duty use, and lead-free training/qualifications
The Bottom Line
SinterFire SD .40 S&W 125gr Lead-Free Frangible Hollow Point combines defensive terminal performance with the safety and cleanliness advantages of frangible, lead-free technology. Stock a case of 200 to test, train, and carry the same load—so your practice matches your protection when it matters most.
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