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357 Sig 125 Grain Bonded Jacketed Hollow Point

0.69 LBS

Product Description

Underwood Ammo’s bonded rounds are unrivaled in power and precision. We utilize Speer bonded bullets which employ an exclusive Uni-Cor process where they bond the jacket to the core one molecule at a time. This essentially eliminates core-jacket separation, maximizes weight retention, and allows for unparalleled penetration and controlled yet fatal expansion. 

As with all of Underwood Ammo’s rounds, we utilize flash suppressed powder so that your vision will not be compromised if it becomes necessary to use your firearm in low light. 

Nickel plated casings with our new nickel plating process provides several key benefits, not limited to but including; improved feeding in all actions of firearms, enhanced corrosion resistance over traditional brass, improved cosmetics, and ease of cleanup during reloading.  Nickel plated casings will not tarnish like brass during storage or when in contact with foreign materials such as leather, moisture, and other metals.

While taking advantage of our state of the art testing equipment, this high performance ammunition is field tested using popular, real firearms that our customers are most likely to own out in the real world with all the elements you would experience. If for some reason Underwood Ammunition fails to meet performance expectations, we stand by our product 100% and will make sure the customer is satisfied with every purchase.

This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.


Technical Information

  • Caliber: 357 Sig
  • Bullet Weight: 125 Grains
  • Bullet Style: Speer Bonded Jacketed Hollow Point
  • Case Type: Ducta-Bright 7a Nickel Plated Brass
Ballistics Information:
  • Muzzle Velocity: 1475 fps
  • Muzzle Energy: 604 ft. lbs.

Product Reviews

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Showing reviews 1-10 of 50 | Next

  1. Best of the best 5 Star Review

    Posted by on 8th Oct 2016

    Coupling the 125 gold dot in the Underwood loading was a perfect match. This is truly as good as the 357 sig gets. Shoots nicely out of my M&P compact. Accurate and stout. Have no question that if I do my part, this round will be the final word.

  2. Awesome brand!! 5 Star Review

    Posted by on 18th Sep 2016

    Best-Fast-Powerful 357 Sig SD round on a market thumbs up, Underwood should always have this ammo in stock, would be even better if big sports&hunting stores that close to my area have this brand on a shelf, so i don't have to pay for shipping and wait.

  3. Very accurate 5 Star Review

    Posted by on 14th Sep 2016

    Very accurate and powerful ammo...not watered down or weak. Feeds flawlessly and smooth...I'll definitely buy Underwood ammo

  4. typical underwood quality 5 Star Review

    Posted by on 6th Sep 2016

    I haven't fired these yet, but they shipped fast. I expect them to be like everything else I've ever used from Underwood Ammo--top of the line.

  5. What .357 sig should be 5 Star Review

    Posted by on 23rd Jul 2016

    After using this I wouldn't use any other .357 Sig SD ammo.

  6. Best of the best 5 Star Review

    Posted by on 17th Jul 2016

    Purchased this ammo for self Defense purposes. It feeds perfectly in my P226 and is very accurate. Thanks for a great product.

  7. 759 ft/lbs from a 6" 357 Sig 5 Star Review

    Posted by on 11th Jul 2016

    Chrono'd this load out of a 6" KKM barreled Glock 35. 71 degrees, 62% humidity. Out of 6 chrono'd shots, an average of 1654FPS, equating 756 ft/lbs of energy. Plus it's a bonded bullet. Holy cow. I'd love to put one of these into a block of gel to see what happens. haha.

  8. Outstanding 5 Star Review

    Posted by on 28th Jun 2016

    I just got my Sig P320 in 357sig and couldn't wait to shoot it for the first time. I alternated between the 147 grains and 125 grain gold dots and wow! These are hard hitting, powerful, extremely accurate rounds. Follow up shots were no problem. Double taps no problem. Recoil was not bad at all considering how hot these are loaded. definitely my new Every Day Carry round.

  9. Underwood 357sig 5 Star Review

    Posted by on 5th Jun 2016

    Great round light muzzle flash

  10. 357 sig how it's supposed to be 5 Star Review

    Posted by on 15th May 2016

    These are the best 357 sig self defense rounds on the market. Period. Don't believe me watch tntoutdoors on youtube.

Showing reviews 1-10 of 50 | Next

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