.300 Blackout Recoil
Calculated free recoil for the loads .300 Blackout actually shoots, across rifle weights, with honest comparisons against the cartridges people weigh against it.
The .300 Blackout burns a small pistol-type powder charge in an AR-15 case, so recoil stays around 6 foot-pounds with supersonic loads and drops under 4 foot-pounds with heavy subsonics.
Because it uses under 20 grains of powder, the gas jet contribution is tiny. Fired suppressed in a gas gun, subsonic .300 Blackout has virtually no felt kick.
Anyone can shoot this all day. Common ground for new shooters and high-volume practice.
.300 Blackout recoil chart
Free recoil energy in foot-pounds for common .300 Blackout loads, at three rifle weights. The middle column is a typical scoped rifle. Click any row to load it into the calculator below.
| Load | Velocity | Powder | 7 lb rifle | 8.5 lb rifle | 10 lb rifle | Calculator |
|---|---|---|---|---|---|---|
| 110 gr supersonic | 2375 fps | 19.5 gr | 5.3 | 4.4 | 3.7 | |
| 125 gr supersonic | 2200 fps | 18 gr | 5.4 | 4.4 | 3.8 | |
| 220 gr subsonic | 1020 fps | 11.2 gr | 2.7 | 2.2 | 1.9 |
Green is mild enough for high-volume practice, amber is where long sessions start costing form, red usually wants a brake, a suppressor or more rifle weight. Powder gas is counted at 1.75× bullet velocity.
.300 Blackout recoil vs comparable cartridges
Each cartridge with a typical load in the rifle weight it is usually shot from, so the comparison reflects real rifles rather than a made-up common weight.
| Cartridge | Load | Rifle | Recoil | vs .300 BLK |
|---|---|---|---|---|
| .300 BLK | 125 gr supersonic | 7 lb | 5.4 ft·lbs | — |
| .223 Rem | 55 gr FMJ | 7.5 lb | 4.5 ft·lbs | -17% |
| 7.62x39 | 123 gr SST hunting | 7.5 lb | 6.6 ft·lbs | +23% |
| .350 Legend | 180 gr hunting | 7 lb | 10.5 ft·lbs | +95% |
Check your own .300 Blackout rifle
Pre-filled with a typical .300 Blackout load. Put in your actual rifle weight and load to get the figure that applies to you.
Load
Rifle
Weigh the rifle the way you shoot it — scope, bipod, suppressor, loaded magazine and all. Powder gas is included at 1.75× bullet velocity.
Anyone can shoot this all day. Common ground for new shooters and high-volume practice.
Details
If you changed the rifle weight
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What drives .300 Blackout recoil
The same cartridge can be pleasant or brutal depending on what it is fired from. Recoil energy scales with rifle weight, so adding two pounds of scope, suppressor and bipod to a mountain rifle cuts the punch noticeably, which is exactly why lightweight magnums have their reputation.
Powder matters more than most shooters credit. Gas leaves the muzzle at roughly 1.75 times bullet velocity and carries real momentum, so a case burning 70 grains recoils harder than bullet weight alone would suggest. Every figure here includes it.
Velocity beats bullet weight too, because energy goes with the square of speed. Backing off 100 fps costs far less recoil than expected, and a mild accuracy load often kicks meaningfully less than a maximum one while shooting better.
Recoil is worth managing because it drives flinch, and flinch costs more points and more animals than ballistics ever will. If a rifle makes you close your eyes on the shot, the number is too high for you regardless of what any chart calls acceptable.
Recoil for other cartridges
Calculated recoil energy for common loads, a chart across rifle weights, and head-to-head comparisons for each cartridge.
.308 Win
6.5 CM
.243 Win
.223 Rem
.30-06
.300 Win Mag
7mm Rem Mag
6.5 PRC
7 PRC
.300 PRC
.338 Lapua
.270 Win
6 CM
6 ARC
6.5 Grendel
.22-250
.204 Ruger
25 CM
.277 Fury
.30-30
.350 Legend
.45-70
5.56 NATO
7.62x39
.450 Bush
6.8 Western
.17 HMR
Wondering how it flies, not just how it kicks? See the full .300 Blackout ballistics chart.
Checking bullet stability and barrel twist? See the .300 Blackout twist rate chart.
Want the raw calculator without a cartridge preset? Use the recoil energy calculator.
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