.300 Blackout Subsonic
Heavy, slow load that stays below the speed of sound, so it's very quiet through a suppressor. Hogs and deer at close range with a subsonic expanding bullet.
Good for: Deer/hog
A typical factory load is a 220 gr subsonic bullet at about 1,010 ft/s, with roughly 498 ft-lbs of energy at the muzzle.
Typical load
220 grsubsonicMuzzle speed
1,010 ft/sMuzzle energy
498 ft-lbsTypical BC (G1)
≈ 0.60typical, varies by brandTwist rate
1:71:8 works for mostPractical range
50–100 ydPoint-blank range
72 yd2" vital zoneRecommended platform
AR-15 or short handy rifleAlmost no recoil; built for a suppressorOn the Hunting Rifle Cartridges chart
Made to hunt
Heavy, slow load that stays below the speed of sound, so it's very quiet through a suppressor. Hogs and deer at close range with a subsonic expanding bullet.
Typical load
220 grsubsonic
Typical muzzle fps
1,010ft/s
Typical muzzle energy
498ft-lbs
Typical BC (G1)
≈ 0.60typical, varies by brand
Twist rate for typical load
1:71:8 works for most
Effective ethical range
50–100 yd
MPBR
72 yd2" vital zone · Near zero 14 yd · Far zero 62 yd · Min PBR 4 yd · Max PBR 72 yd · Sight-in @100 5.85" low
Recommended platform
AR-15 or short handy rifleAlmost no recoil; built for a suppressor
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Speed, energy and BC are typical figures for the listed load; real numbers vary by brand, lot and barrel length. Always check the ammo maker's data for your exact load.