Subsonic Load Data
Find subsonic loads for suppressed shooting below. Alternatively, use the velocity-driven load calculator to determine the ideal powder charge for your target velocity—perfect for .300 Blackout, 9mm, and other cartridges where staying below the speed of sound matters.
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.308 Win.
.308 | 200gr | Lapua Subsonic
.308 Win.
.308 | 200gr | Reichenberg Subsonic
.308 Win.
.308 | 190gr | Hornady Sub-X
.30-06 Spring.
.308 | 200gr | Reichenberg Subsonic
.338 ARC
.338 | 300gr | MAKER .338 ARC/Spectre Expanding Subsonic
.30-06 Spring.
.308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets
8.6 mm Blackout
.338 | 350gr | MAKER SUB-REX
.30-06 Spring.
.308 | 190gr | Hornady Sub-X
6.5 Creedmoor
.264 | 130gr | Lehigh Defense Controlled Chaos
.30-06 Spring.
.308 | 220gr | MAKER 300 blackout
.30-06 Spring.
.308 | 220gr | Sierra MatchKing
.300 AAC Blackout
.308 | 220gr | MAKER 300 blackout
7.62 x 39 (.308) Russian
.308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets
.308 Win.
.308 | 220gr | Sierra MatchKing
.300 AAC Blackout
.308 | 188gr | Discreet Ballistics Selous Machined Expander
.45-70 Govt.
.458 | 465gr | A-Square DeadTough
.308 Win.
.308 | 115gr | AERO SUB,- smax:11.40
7.62 x 39 (.308) Russian
.308 | 200gr | Reichenberg Subsonic
7.62 x 39 (.308) Russian
.308 | 155gr | Peregrine Subsonic
.300 AAC Blackout
.308 | 190gr | AERO SUB,- smax:23.90
.458 SOCOM
.458 | 410gr | Hornady 458 SOCOM Sub
6.5 Creedmoor
.264 | 159gr | RWS TMR
7.5 x 55 Swiss
.308 | 220gr | Sierra MatchKing
.308 Win.
.308 | 220gr | MAKER 300 blackout
.308 Win.
.308 | 190gr | AERO SUB,- smax:23.90
.308 Win.
.308 | 188gr | Discreet Ballistics Selous Machined Expander
.30-06 Spring.
.308 | 188gr | Discreet Ballistics Selous Machined Expander
.300 AAC Blackout
.308 | 180gr | Barnes MRX BT
.308 Win.
.308 | 175gr | Hornady Sub-X
.300 AAC Blackout
.308 | 154gr | Reichenberg HDB Subsonic
Community Subsonic Recipes
The first entries are shown in full. For all other community recipes the exact powder charge and fill rate are hidden — upgrade to PRO to view the complete data. Upgrade to PRO
.44 S&W Special
M.38 Special
10 mm Auto (CIP)
10 mm Auto (CIP)
M.40 S&W
10 mm Auto (CIP)
.40 S&W
10 mm Auto (CIP)
10 mm Auto (CIP)
10 mm Auto (CIP)
10 mm Auto (CIP)
10 mm Auto (CIP)
10 mm Auto (CIP)
10 mm Auto (CIP)
10 mm Auto (CIP)
10 mm Auto (CIP)
10 mm Auto (CIP)
M.40 S&W
M10 mm Auto (CIP)
10 mm Auto (CIP)
10 mm Auto (CIP)
10 mm Auto (CIP)
9 mm Para
10 mm Auto (CIP)
10 mm Auto (CIP)
10 mm Auto (CIP)
M10 mm Auto (CIP)
10 mm Auto (CIP)
10 mm Auto (CIP)
10 mm Auto (CIP)
What is a subsonic load?
A subsonic load keeps the bullet below the speed of sound (roughly 1,125 fps at sea level), so no supersonic crack follows the shot. Most handloaders aim for 1,000–1,080 fps to keep a safety margin across changing temperature and altitude, because a load that measures 1,110 fps on a cold morning can go transonic on a hot afternoon and lose accuracy.
Popular subsonic cartridges
.300 Blackout with 190–220 gr bullets is the benchmark subsonic rifle cartridge, while 9mm Luger, .45 ACP and .45 Colt are naturally subsonic with standard bullet weights. .308 Winchester, 8.6 Blackout and .223 Remington can be loaded subsonic too, but they need heavy-for-caliber bullets and a fast twist barrel to stay stable at low velocity.
Developing a subsonic load
Pick a heavy bullet and a fast-burning powder, then work up from a conservative start charge while watching case fill. Very low fill rates are the main risk in subsonic loading, so keep the charge dense enough to burn consistently, chronograph every step, and confirm the bullet still cycles the action and clears the suppressor bore.
Explore More Subsonic Load Data
Use our velocity-driven load calculator to develop load recipes in your desired cartridge with muzzle velocities below the speed of sound.
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