1000 Rounds of 125gr TMJ .357 SIG Ammo by Speer

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Price: $600.00

Fast Facts
  • Manufacturer Speer
  • Condition New
  • Bullet Weight 125gr
  • Projectile Type TMJ
  • Ammo Use Type Inside Range Training, Range Training
  • Casing Type Brass
  • Quantity 1000
  • Caliber .357 SIG
  • Manufacturer SKU 53919
  • Primer Type Boxer
  • Muzzle Velocity (ft. per sec) 1350
  • Muzzle Energy (ft. pounds) 506
  • Magnetic No
  • UPC Barcode 10076683539196
  • Cost Per Round 60¢ per round
  • Description
  • Reviews
  • Q & A
More Details About Our 1000 Rounds of 125gr TMJ .357 SIG Ammo by Speer
This is not 357 Magnum ammunition. It will not work in 357 Magnum firearms.

The 357 SIG! One of the more regrettably named pistol cartridges, seeing as how often people confuse it for something else. But that’s okay. You already know the 357 SIG, and you love it. Long hours at the range are always something to look forward to!

But you aren’t wild about the notion of inhaling lead gas. Rightly so, because sufficient exposure to lead can damage your nervous system and kill you. So what should you do? Stop training with your 357 SIG pistol? Of course not! Order this Idaho-made Lawman series ammo by Speer instead.

The total metal jacket is very similar to the full metal jacket. Both bullets have lead cores. Both bullets have copper jackets. Both bullets are incapable of terminal expansion, and accordingly aren’t ideal for self-defense. But unlike the FMJ, the TMJ’s jacket completely encapsulates its core. In other words, it doesn’t leave its core’s base exposed to the white hot heat of combusting propellant.

The benefits of firing TMJ ammo are twofold. First, you will dramatically decrease your exposure to lead – especially if you train in an indoor range where ventilation is subpar. Second, you will significantly decelerate barrel fouling. No lead burned off the bullet equals cleaner and more effective rifling!

This round’s 125 grain bullet and 1,350 fps muzzle velocity (4” test barrel) are identical to Speer’s Gold Dot 357 SIG load. If that’s your preferred self-defense ammo, then you couldn’t pick more similar training ammo than these reloadable brass-cased beauties.

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