Underwood Ammo 855 Xtreme Defender COPPER SOLID Monolithic 65 Grain .357 Sig

Select Pack Size

rounds

20 Rounds

$45.86

($2.293/rd)

Out of Stock

100 Rounds

$223.00

($2.23/rd)

Save 3%

Out of Stock

200 Rounds

$446.00

($2.23/rd)

Save 3%

Out of Stock

Quantity:

1 × 20 rounds | 20 rounds total

$45.86

Specifications
UPC	816874022624
Brand	Underwood Ammo
Condition	New
Caliber	.357 SIG
Bullet Weight	65
Bullet Type	SC: Solid Copper
Casing	Brass

Underwood .357 Sig Xtreme Defender 65gr CSM Ammo is a high-performance defensive round designed for maximum effectiveness. Featuring a solid copper projectile, this ammunition offers excellent penetration and expansion characteristics. The 65-grain bullet is engineered to create a wound channel that maximizes tissue damage and stopping power. With its precision manufacturing and quality components, this .357 Sig round delivers consistent performance and reliability for personal defense situations.

Product Highlights:

Specifications
Manufacturer	Underwood Ammo
Caliber	.357 SIG
Bullet Weight	65 Grains
Bullet Type	Xtreme Defender (Copper Solid)
Rounds Per Box	20
Boxes Per Case	10
Reloadable	Yes
Serialized	No
UPC	816874022624
Item Number	A855
Dimensions	1.40" x 2.55" x 3.05"
Muzzle Velocity	2100 fps

Key Features:

The Underwood .357 Sig Xtreme Defender 65gr CSM Ammo offers impressive performance characteristics that make it an excellent choice for self-defense. Here's a breakdown of its key features:

Caliber	.357 SIG Powerful handgun cartridge known for its velocity and energy
Bullet Weight	65 grains Lightweight bullet for increased velocity and flatter trajectory
Bullet Type	Xtreme Defender Solid copper monolithic construction for consistent performance
Quantity	20 rounds per box Convenient packaging for practice or carry
Reloadable	Yes Brass cases can be reloaded for cost savings

Applications & Use Cases:

Self-Defense: Designed for personal protection with its advanced Xtreme Defender bullet technology
Law Enforcement: Suitable for law enforcement agencies as a duty ammunition option
Concealed Carry: Ideal for concealed carry due to its effectiveness in compact .357 SIG firearms
Target Practice: Can be used for training to familiarize with the recoil and performance of defensive ammunition
Home Defense: Effective option for home defense scenarios, offering reliable performance

Pros and Cons:

Pros

✔ Innovative Bullet Design: Xtreme Defender solid copper bullet offers excellent penetration and expansion.
✔ Lightweight Bullet: 65 grain bullet weight allows for higher velocities and flatter trajectories.
✔ Reliable Performance: Underwood Ammo is known for consistent and high-quality ammunition.
✔ Versatile Caliber: .357 Sig offers a good balance of power and controllability for self-defense.
✔ Lead-Free: Solid copper construction is environmentally friendly and reduces lead exposure.

Cons

✘ Recoil: The .357 Sig caliber can produce significant recoil, especially in compact firearms.
✘ Cost: Premium defensive ammunition is typically more expensive than standard target loads.
✘ Limited Firearm Compatibility: .357 Sig is less common than 9mm or .40 S&W, limiting firearm choices.
✘ Overpenetration Risk: High penetration capability may increase risk in self-defense situations.

About Underwood Ammo:

Underwood Ammo, founded in 2013, has quickly become a respected name in the ammunition industry. Based in Sparta, Illinois, Underwood specializes in producing high-performance, premium-grade ammunition for both civilian and law enforcement markets. The company is known for pushing the boundaries of ballistic performance, often achieving higher velocities and energy levels than many competitors. Underwood's commitment to quality is evident in their use of top-tier components and rigorous testing procedures. They manufacture all their ammunition in the United States, ensuring strict quality control and supporting American industry.

Frequently Asked Questions:

Q: What is the bullet type used in this Underwood .357 Sig ammunition?

A: This Underwood .357 Sig ammunition uses a 65 grain Xtreme Defender bullet, which is a solid copper projectile. The bullet type is listed as 'COPPER SOLID' in the product specifications.

Q: How many rounds are in each box of this ammunition?

A: Each box of this Underwood .357 Sig Xtreme Defender ammunition contains 20 rounds.

Q: Is this ammunition reloadable?

A: Yes, this ammunition is reloadable. The product specifications indicate 'Y' for the reloadable attribute.

Q: What is the case pack quantity for this product?

A: The case pack for this Underwood .357 Sig ammunition is 10 boxes per case, as indicated by the 'boxes_per_case' attribute in the product specifications.

Q: Is this ammunition considered a serialized item?

A: No, this ammunition is not serialized. The product specifications clearly state 'NO' for the serialized attribute.

Q: What are the dimensions of the ammunition box?

A: The dimensions of the ammunition box are 1.40 X 2.55 X 3.05 inches, as specified in the product details.

Underwood Ammo 855 Xtreme Defender COPPER SOLID Monolithic 65 Grain .357 Sig

Product Highlights:

Key Features:

Applications & Use Cases:

Pros and Cons:

Pros

Cons

About Underwood Ammo:

Frequently Asked Questions:

Shop Ammo

Tools & Guides

Company

Support & Info

Added to cart