Skip to main content Skip to main content

Hornady .450 Bushmaster Subsonic Ammo

Hornady .450 Bushmaster Subsonic Ammo

A unique load for the .450 Bushmaster is Hornady’s new Subsonic offering. It’s loaded with the company’s 395-grain Sub-X (Subsonic–eXpanding) bullet that is designed to expand and penetrate but not break up. Hornady says it’s “silent and stealthy.”

The Sub-X load uses a low-flash propellant that won’t hinder low-light vision and that is also quiet (with a suppressor installed on the rifle, it’s even quieter). The Sub-X bullet has a Flex Tip insert to help initiate expansion and longitudinal grooves in the gilding metal jacket.

This fat bullet has an impressive ballistic coefficient of .300 and a sectional density of .276 that aids penetration. The listed factory velocity is 1,050 fps from a 24-inch barrel. Out of the Rock River Arms LAR-15M I used for this report, which has a 16-inch barrel, the round’s average velocity was 1,005 fps. That’s for five rounds measured 10 feet from the gun’s muzzle with an Oehler Model 35P chronograph.

As for accuracy, the load averaged 1.47 inches for three, five-shot groups at 100 yards. That’s about middle of the pack for this carbine. Hornady’s Subsonic .450 Bushmaster load hits 9.5 inches lower than the company’s 250- and 260-grain loads, and it would not cycle the LAR-15M’s action. Hornady notes that functioning with subsonic ammo is totally dependent on the gun’s gas system.


Hornady Subsonic .450 Bushmaster Ammo
NOTES: Accuracy is the average of three, five-shot groups fired from a benchrest. Velocity is the average of five rounds measured 10 feet from the gun’s muzzle. Range temperature was 45 to 64 degrees Fahrenheit.

Hornady’s Subsonic line also includes .300 Blackout, .30-30 Win., and .45-70 Gov’t rifle cartridges and 9mm Luger, .40 S&W, and .45 ACP handgun chamberings.


MSRP: $39.72; hornady.com

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Recommended Articles

Popular Videos

A New Season of G&A TV

A New Season of G&A TV

In this new season of Guns & Ammo TV, we introduce two new series and bring back a viewer favorite - Camera's Don't Lie. We look at long-range tech and see how to make shots previously thought impossible. Next we visit ISS Prop House in Hollywood.

All About .300 Blackout

All About .300 Blackout

The .300 Blackout is here to stay, and we take some time to look at new technology surrounding this cartridge. Next, we pit subsonic rivals against each other before stretching the legs of this CQB round out to 600 yards from a short 9-inch barrel.

The Glock 21

The Glock 21

Frank and Tony from Gallery of Guns spice up the Glock test using their non-dominant hands.

See All Videos

Magazine Cover

GET THE MAGAZINE Subscribe & Save

Digital Now Included!

SUBSCRIBE NOW

Give a Gift   |   Subscriber Services

PREVIEW THIS MONTH'S ISSUE

Buy Digital Single Issues

Don't miss an issue.
Buy single digital issue for your phone or tablet.

Buy Single Digital Issue on the Shooting Times App

Other Magazines

Special Interest Magazines

See All Special Interest Magazines

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Get the top Shooting Times stories delivered right to your inbox.

Phone Icon

Get Digital Access.

All Shooting Times subscribers now have digital access to their magazine content. This means you have the option to read your magazine on most popular phones and tablets.

To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine.

Get Digital Access

Not a Subscriber?
Subscribe Now