AmmunitionBlack Hills AmmunitionSold by Brownells

Black Hills Ammunition

Black Hills Gold Ammo 300 Winchester Magnum 165gr Gmx - 300 Winchester Magnum 165gr Gmx 100/Case

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Black Hills

165gr GMX load

Packaged As

100 rounds per case

Reloadable Brass

Cases included

Boxer Primed

Ammunition

Hand Inspected

Before leaving the facility

$284.99
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SKU: 105001555

Overview

Black Hills Gold 300 Winchester Magnum 165gr GMX Ammunition is built for hunters who want a premium factory load in a hard-hitting magnum chambering. It is presented as handcrafted, ballistically tested ammunition with reloadable brass cases and boxer priming, making it a practical choice for those who value careful inspection and consistency in their hunting loads. The 100-round case format suits shooters who want to stock up for range work, sight-in sessions, or extended hunting preparation. This is a straightforward option for big-game use where a 300 Winchester Magnum load is appropriate, without adding unnecessary complexity.

Why Hunters Choose the Black Hills Ammunition

Reloadable Brass

Cases support reuse after firing

Boxer Primed

For straightforward reloading compatibility

Hand Inspected

Before leaving the facility

Ballistics Tested

Rigorously before shipment

Packaged 100-round

Case for extended supply

Key Features

  • Black Hills Gold 300 Winchester Magnum ammunition with 165gr GMX load
  • Packaged as 100 rounds per case
  • Reloadable brass cases included
  • Boxer primed ammunition
  • Hand inspected before leaving the facility
  • Tested rigorously in ballistics

Best Used For

  • Hunters loading 300 Winchester Magnum rifles for controlled, carefully inspected ammunition use.
  • Shooters who want reloadable brass cases and boxer-primed cartridges for future reloading.
  • Big-game hunters seeking factory ammunition in a 165gr GMX load.
  • Users who prefer hand-inspected ammunition from Black Hills Ammunition for range or field preparation.

Specifications

Ballistics TestedYes
Bullet TypeGMX
Bullet Weight165gr
Cartridge300 Winchester Magnum
Case Count100/Case
Case MaterialReloadable brass
Hand InspectedYes
HandcraftedYes
Primer TypeBoxer primed

Pros

  • Reloadable brass cases support reuse after firing.
  • Boxer primed for straightforward reloading compatibility.
  • Hand inspected before leaving the facility.
  • Ballistics tested rigorously before shipment.
  • Packaged in a 100-round case for extended supply.

Considerations & Trade-offs

  • Loaded in .300 Winchester Magnum, so it is intended for rifles chambered for that cartridge and may not suit hunters looking for a lighter-recoiling option.
  • Sold as a 100-round case, which is practical for range use or stocking up but may be more than needed for occasional shooters.
  • The listing does not provide ballistic details beyond the 165gr GMX load, so compatibility with specific hunting setups or zero preferences should be verified by the user.
  • Reloadable brass cases are a benefit for reloaders, but they add value mainly if you plan to reuse the brass.

Suggested Comparisons

  • Other .300 Winchester Magnum hunting ammunition
  • Premium rifle ammunition
  • Reloadable brass ammunition
  • Boxer-primed ammunition

Suggested Accessories

  • Ammunition storage box
  • Hearing protection
  • Rifle cleaning kit
  • Ballistics calculator

Frequently Asked Questions

What cartridge and bullet weight is this ammunition loaded with?

This product is Black Hills Gold 300 Winchester Magnum ammunition loaded with a 165gr GMX bullet.

How many rounds are included in a case?

The product title lists it as 100/Case.

Are the cases reloadable?

Yes. The short and long descriptions state that it uses reloadable brass cases.

Is this ammunition boxer primed?

Yes. The source data states that it is boxer primed.

What quality-control details are provided for this ammunition?

The source says it is handcrafted, hand inspected before leaving the facility, and tested rigorously in ballistics.