Blackout Silverback 45ACP 230gr, FBI Penetration, 20 Round Box, Subsonic

Blackout Silverback 45ACP 230gr, FBI Penetration, 20 Round Box, Subsonic, in stock and shipping now. If you already know .45 ACP, skip to the specifications; if not, the buying notes below are the useful part.

Specifications

Cartridge	.45 ACP
Bullet weight	230 grain
Projectile	Solid Copper Subsonic
Bullet diameter	.451
Typical muzzle velocity	830 to 1,000 fps
Usual twist rate	1:16
Platform	pistol and pistol carbine
Rounds per pack	20
SKU	SB45230FBI
Price	$31.99
Cost per round	$1.599

Projectile construction

This is a a solid copper design intended for subsonic velocities, where conventional lead hollow points typically fail to open.

It is worth separating weight from construction when comparing loads. They are independent variables, and construction is the one that decides outcome.

Working with 45ACP

Naturally subsonic in standard loadings, which makes it one of the easiest cartridges to suppress well.

Muzzle velocity for .45 ACP typically runs 830 to 1,000 fps, from a pistol and pistol carbine platform with a 1:16 twist. Published figures are a starting point, not a specification; chronograph your own rifle before you trust a number.

Choosing this bullet weight

At 230 grain this sits at the heavy end of the .45 ACP range. Heavier bullets carry momentum further, buck wind better and penetrate more, and they pay for it with a steeper arc and more felt recoil. If your shots are inside normal hunting distance and you want penetration, this is the end you want.

Pack size

20 rounds at $31.99 works out at $1.599 per round. A box this size suits load development, hunting stock and defensive carry rather than high volume practice.

Compliance

Federal law does not class ammunition as a firearm, yet several states and cities restrict or licence ammunition shipments. You must be of legal age and eligible to possess ammunition at your delivery address. See our shipping and delivery page for the current detail.

Who should buy this

Before buying, be honest about the use case. This suits suppressed shooting, where staying under the sound barrier is the whole point and bullet design has to compensate for low velocity.

Before you trust the box velocity

Velocity scales with barrel length, and the effect is largest on lighter, faster bullets. Check what your own barrel actually delivers. For .45 ACP specifically, expect 830 to 1,000 fps as the published band and treat your own chronograph as the authority.

Storing ammunition

Store it dry and cool, rotate oldest stock first, and check case necks for corrosion on anything that has sat a long time.

See also

Browse .45 ACP ammunition for other weights and projectile types, or run your setup through the ballistics calculator.

Choosing .45 ACP over something else

Against 9mm it delivers a larger frontal area at lower velocity and naturally subsonic speed, at the cost of magazine capacity and ammunition price.

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

What arrives

This is genuine factory ammunition, held in a climate stable stockroom rather than a container. Orders are picked from sealed cases and packed so nothing shifts in transit.

New to this cartridge? Start with a single box. Barrel to barrel variation is real, and the only way to know how a load performs in your rifle is to shoot it.

Frequently asked questions

Which twist rate does .45 ACP need?

1:16 is standard. Naturally subsonic in standard loadings, which makes it one of the easiest cartridges to suppress well.

How fast does .45 ACP run?

Around 830 to 1,000 fps at the muzzle, though your barrel will give you its own number.

Is the solid copper subsonic projectile suitable for what I am shooting?

It is a a solid copper design intended for subsonic velocities, where conventional lead hollow points typically fail to open. Match that against your intended use before buying.

Why choose 230 grain?

Weight sets the trade between velocity and momentum. 230 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 $31.99, which is $1.599 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.

Do I need a licence to buy this?

In most of the country no, but some states and cities require a licence or an approved recipient for ammunition. The shipping page has the detail.

How should I compare loads?

Compare cost per round rather than box price, and compare projectile construction rather than grain weight. Those two habits will steer you right more often than brand loyalty.

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.

Will this arrive in original packaging?

Yes, in the manufacturer’s packaging, boxed so nothing shifts on the way to you.