Blackout Ammunition .260 REM 123gr Sierra MatchKing©, 20 Round Box

The Blackout Ammunition .260 REM 123gr Sierra MatchKing©, 20 Round Box is a .260 Remington load held in stock. What follows is the practical version: construction, velocity, and who it suits.

Specifications

Cartridge	.260 Remington
Bullet weight	123 grain
Projectile	Match Hollow Point Boat Tail
Bullet diameter	.264
Typical muzzle velocity	2,700 to 2,950 fps
Usual twist rate	1:8
Platform	short action bolt
Rounds per pack	20
SKU	GA260123SMK
Price	$39.99
Cost per round	$2.000

Projectile construction

This is a a target design chosen for consistency rather than terminal effect. The hollow point is a manufacturing artefact of the jacket drawing process, not an expansion mechanism, so it should not be selected as a hunting bullet.

Bullet weight and bullet construction get conflated constantly. Weight sets trajectory and momentum; construction sets what happens on impact.

.260 Remington background

Same bore and bullet options as 6.5 Creedmoor on a .308 parent case, with a small edge in case capacity.

Muzzle velocity for .260 Remington typically runs 2,700 to 2,950 fps, from a short action bolt platform with a 1:8 twist. Treat any published velocity as indicative. Your barrel will give you a different number, and that number is the one that matters.

Why this grain weight

At 123 grain this is on the lighter side for .260 Remington. Lighter bullets leave the muzzle faster and shoot flatter, which helps on smaller targets and at distance, but they bleed velocity sooner and depend more on impact speed to do their job.

What you get for the money

20 rounds at $39.99 works out at $2.000 per round. A box this size suits load development, hunting stock and defensive carry rather than high volume practice.

Compliance

Ammunition ships within the United States subject to state and municipal restriction. Some jurisdictions require licensing or prohibit delivery outright, and buyers must meet age and eligibility requirements where they live. See our shipping and delivery page for the current detail.

Intended use

Before buying, be honest about the use case. This is a target and load development projectile. It is not a hunting bullet, and choosing it for game is the single most common mistake with this bullet line.

Barrel length matters

Do not assume box velocity applies to your barrel. Published figures usually come from long test barrels, and real rifles run slower. For .260 Remington specifically, expect 2,700 to 2,950 fps as the published band and treat your own chronograph as the authority.

Keeping it serviceable

Keep cartridges cool, dry and at stable temperature. Heat cycling in a garage or vehicle does more damage over time than age does, and factory packaging protects bullet tips from knocking together.

Browse more

Browse .260 Remington ammunition for other weights and projectile types, or run your setup through the ballistics calculator.

Where .260 Remington sits

Ballistically it sits within a hair of 6.5 Creedmoor using the same bullets. The practical difference is that Creedmoor brass and factory ammunition are far easier to find.

Pick the cartridge that fits the shooting you actually do, not the shooting you read about.

What we ship

Every load leaving here is factory ammunition from the manufacturer, not repackaged or remanufactured stock. Lots are stored indoors at stable temperature and packed so bullet tips are not knocking against each other in transit.

A word if you are stocking up: test before you commit. Buying a case of a load your rifle dislikes is an expensive way to learn about harmonics.

Frequently asked questions

Which twist rate does .260 Remington need?

1:8 is standard. Same bore and bullet options as 6.5 Creedmoor on a .308 parent case, with a small edge in case capacity.

What velocity should I expect from .260 Remington?

Typically 2,700 to 2,950 fps. Barrel length, temperature and lot all shift it, so chronograph your own rifle.

Is the match hollow point boat tail projectile suitable for what I am shooting?

It is a a target design chosen for consistency rather than terminal effect. The hollow point is a manufacturing artefact of the jacket drawing process, not an expansion mechanism, so it should not be selected as a hunting bullet. Match that against your intended use before buying.

Why choose 123 grain?

Weight sets the trade between velocity and momentum. 123 grain is one point on that curve; the right pick depends on your barrel, your distance and your target rather than on the number itself.

What is in the pack?

20 rounds at $39.99, which is $2.000 per round.

Is this load in stock?

Yes. Everything on this page is held in stock and ships from the United States. Sold out lines are updated rather than left live.

What are the delivery restrictions?

They vary by state and sometimes by city, ranging from licensing requirements to outright prohibition. See the shipping page.

Do you offer bulk pricing?

Larger pack sizes carry a lower cost per round, which is listed on each product page so you can compare directly rather than doing the arithmetic yourself.

Can I reload this brass?

Most of our loaded ammunition uses reloadable boxer primed brass. Check the individual listing if you intend to reload, since some training and steel cased lines are not reloadable.

Is this factory ammunition or reloaded?

Factory loaded ammunition from the manufacturer. We do not stock remanufactured or hand loaded product.