Description
Double Tap's lead-free .357 Magnum is engineered for shooters who need dependable performance without compromising on environmental responsibility. The 140-grain solid copper hollow point provides the ballistic characteristics you'd expect from quality defensive and hunting ammunition, delivering 1375 fps from a 4-inch barrel with 587 foot-pounds of energy.
Double Tap's Low-Flash Design for Real-World Use
Most defensive situations happen in low-light conditions, and that's where Double Tap's low-flash powder formula earns its place on your belt. The reduced muzzle flash means you'll keep your night vision and sight picture intact when it matters most. You won't get blinded by your own gun, which makes a tangible difference in actual performance versus bench testing. This attention to practical detail is what sets Double Tap apart from generic ammunition.
Ballistic Performance You Can Verify
Testing shows 19 inches of penetration with .71 inches of expansion in 10% ballistics gelatin, creating a 4-inch temporary wound channel. The solid copper construction ensures consistent expansion without relying on a lead core, giving you clean performance in any environment. Hand-loaded ammunition with tight tolerances (powder charges held within plus or minus one-tenth of a grain) means each round performs predictably.
Built for Reloaders and Regular Use
This ammunition ships in reloadable brass cases with boxer primers, so you can reload spent cases if that's part of your routine. It's new production, non-corrosive ammunition suitable for range work, hunting, or duty carry. The solid copper bullet design works across barrel lengths from compact revolvers to longer rifles.
Key Specifications
- Caliber: .357 Magnum
- Bullet Weight: 140 grains
- Bullet Type: Solid Copper Hollow Point (SC-HP)
- Muzzle Velocity (4" barrel): 1375 FPS
- Muzzle Energy (4" barrel): 587 foot-pounds
- Penetration: 19 inches (10% ballistic gelatin)
- Expansion: .71 inches (10% ballistic gelatin)
- Rounds Per Box: 20
- Case Type: Reloadable brass
- Primer Type: Boxer
- Corrosive: No
- Lead Free: Yes
- Manufacturer: Double Tap Ammunition
- Manufacturer Part Number: 357M140X
- UPC: 753387049048
What’s Included
- 20 rounds of Double Tap .357 Magnum 140gr lead-free ammunition
Frequently Asked Questions
How does this lead-free round compare to traditional lead-core ammunition?
The solid copper construction delivers comparable ballistic performance while eliminating lead exposure. Double Tap's engineering focuses on real-world stopping power, with verified penetration and expansion through gelatin testing. The lead-free design is particularly useful in indoor ranges or areas where lead ammunition isn't preferred.
What does 'low-flash' powder mean for shooting?
Low-flash powders burn more completely, producing less visible muzzle flash. This is crucial in low-light defensive scenarios because you maintain your night vision and sight picture instead of being temporarily blinded by your own gun's flash. Double Tap specifically targets this real-world advantage.
Can I reload the brass cases?
Yes. Double Tap ammunition comes in reloadable brass cases with boxer primers, which means you can reload spent casings if you reload ammunition. The tight powder charge tolerances (plus or minus one-tenth grain) reflect Double Tap's quality control standards.
What's the difference between 140-grain and heavier .357 Magnum loads?
The 140-grain load from Double Tap balances velocity and stopping power effectively for its weight. Lighter rounds generally carry more velocity, while heavier rounds sacrifice some speed for increased impact. The 140-grain bullet in this load is specifically engineered to expand reliably at the 1375 fps velocity Double Tap delivers.







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