77 Grain .223 Ammo
(3)
PMC X-Tac Match 223 77gr OTM Ammunition 20rds - 223XM
Brand:
PMC
Bullet Type:
Open Tip Match
Caliber:
.223 Rem
Capacity:
20
Finish Per Color:
Brass
Grains:
77 grain
From:
$16.50
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22
(20)
Sig Sauer 223 Remington 77gr Elite Match Grade OTM Ammunition, 20 Round Box u2012 E223M1-20
Brand:
Sig Sauer Ammunition
Bullet Type:
OPEN TIP MATCH (OTM)
Caliber:
.223 Rem
Capacity:
20
Finish Per Color:
Brass
Grains:
77 grain
From:
$19.19
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21
(0)
Federal Premium Gold Medal Centerstrike 223 Remington 77gr Jacketed Hollow Point Rifle Ammo - 20 Rounds
Brand:
Federal
Bullet Type:
Jacketed Hollo Point
Caliber:
.223 Rem
Capacity:
20
Finish Per Color:
Brass
Grains:
77 grain
From:
$24.69
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20
(14)
Federal 223 77gr Sierra MatchKing BTHP Gold Medal Match Ammunition 20rds - GM223M3
Brand:
Federal
Bullet Type:
Sierra Matchking Boat Tail Hollow Point
Caliber:
.223 Rem
Capacity:
20
Finish Per Color:
Brass
Grains:
77 grain
From:
$20.14
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23
(0)
DoubleTap Ammunition DT Longrange 77 gr Nosler Custom Competition Hollow Point Boat Tail .223 Rem/5.56 Ammo, 20/box - 223R77HP
Brand:
DoubleTap Ammunition
Bullet Type:
Hollow Point Boat-Tail (HPBT)
Caliber:
.223 Rem
Capacity:
20
Finish Per Color:
Brass
Grains:
77 grain
From:
$24.39
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15
(2)
Fiocchi .223 Rem 77gr Sierra MatchKing HPBT Ammunition, 20 Round Box u2012 223MKD
Brand:
Fiocchi
Bullet Type:
Hollow Point Boat Tail
Caliber:
.223 Rem
Capacity:
20
Finish Per Color:
Brass
Grains:
77 grain
From:
$14.99
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17
(1)
Norma Match Sierra Matchking 77gr 223 Remington Ammo, 20rds - 10157502
Brand:
Norma
Action:
Semi-Auto
Barrel Length:
26in
Bullet Type:
Sierra MK
Caliber:
.223 Rem
Capacity:
20
From:
$5.49
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15
(0)
Winchester Ammunition Defender 77 gr Split Core Jacketed Hollow Point .223 Rem Ammo, 20/box - S223RPDB2
Brand:
Winchester
Bullet Type:
SPLIT CORE JACKETED HOLLOW POINT
Caliber:
.223 Rem
Capacity:
20
Finish Per Color:
Brass
Grains:
77 grain
From:
$28.99
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10
(0)
Atomic Sierra Tipped Hollow Tip Ammunition .223 Rem 50Rds 77 Grain
Brand:
Atomic
Bullet Type:
Tipped MatchKing
Caliber:
.223 Rem
Grains:
77 grain
Rounds:
50
Marketplace Insights
★ 4.7/5
based on 42 customer reviews across 12 variants from 32 retailers
Exceptional match-grade ammunition praised for outstanding accuracy and consistency, though some users report lower-than-advertised velocities and heavy fouling.
What customers like
Exceptional Accuracy76%
Most accurate factory ammo available. I've tried other manufacturers
Consistency & Reliability50%
Out of the box, this is really consistent ammo.
Great Value for Price36%
The value and accuracy of this ammo far exceeds the price.
Long-Range Performance26%
able to hit steel in a major match from 200 yards all the way out to 560 yards
Clean & Suppressor-Friendly12%
Supresses very well in addition to being consistent.
Common concerns
Velocity Below Advertised12%
It is advertised to produce 2790fps out of a 20" barrel.
Fouling & Cleanup Issues5%
the filler is HORRENDUS with a can mounted.
Frequently Asked Questions
77 Grain .223 Ammo
What is 77 grain 223 good for?
77 grain .223 is best suited for long-range target shooting and competition, particularly in AR-15s with 1:8 or faster twist rates. It's also used for hunting coyotes and deer. For defense, it offers good penetration. Match-grade bullets like the Sierra MatchKing are popular for precision shooting.
What is the best twist rate for a 77 grain 223?
For 77 grain .223 bullets, a 1:7 or 1:7.5 twist rate is ideal. These faster twists provide full stability that 77 grain projectiles require. A 1:8 twist is marginal and may not fully stabilize them, especially at distance. Avoid anything slower than 1:8.
Will 1.8 twist stabilize 77 grain?
A 1:8 twist will stabilize 77 grain bullets reliably. It's the minimum recommended twist for that weight. A 1:7 twist offers more margin, particularly at longer ranges or lower velocities, but 1:8 works well under most practical conditions.
What is the velocity of a 77 grain 556?
Factory 77 grain 5.56 loads typically achieve 2,750–2,850 fps from a 20-inch barrel. From a common 16-inch barrel, expect roughly 2,600–2,750 fps. Black Hills and similar match loads usually run near 2,750 fps. Velocity drops approximately 25–30 fps per inch of barrel lost.
What grain 223 is best for 1 in 7 twist?
A 1:7 twist stabilizes 45–80 grain bullets but excels with 69–77 grain projectiles. The Sierra MatchKing 77gr is a top choice for target shooting. For hunting, consider the 69–70 grain Sierra Tipped GameKing or Barnes TSX 62gr.
What grain 223 for self-defense?
For self-defense, 55–62 grain expanding bullets work best. Hornady Critical Defense 55gr FTX and Speer Gold Dot 55gr are reliable choices. Avoid FMJ loads indoors due to overpenetration risk. Confirm your barrel's twist rate supports your chosen bullet weight.
What is a 77 grain 223?
A 77 grain .223 is a heavy match-grade bullet loaded into a .223 Remington cartridge. Heavier than standard 55–62 grain loads, it offers better long-range accuracy and wind resistance. Requires a 1:8 twist or faster barrel to stabilize properly. Common in competitive shooting and military applications.
What is the most accurate 223 ammo?
Accuracy depends on your rifle's twist rate and intended use. Black Hills 77gr and Federal Gold Medal Match 77gr consistently perform well at long range. Sierra MatchKing 77gr is a proven precision choice. For hunting, 64–70gr expanding loads balance accuracy with terminal performance. Always test several loads in your specific rifle.
How far will a 223 accurately shoot?
Accurate range depends on rifle setup, ammunition, and shooter skill. Most .223 rifles are considered reliable to around 200 yards for general use. Quality match ammunition and proper twist rates extend that to 600+ yards. Some competitive shooters have attempted shots out to a mile with precision reloads and specialized rifles.
What is 77 grain TMK?
77 grain TMK is Sierra's Tipped MatchKing bullet for .223/5.56 rifles. The polymer tip improves ballistic coefficient over standard MatchKing designs and aids reliable magazine feeding. Commonly loaded by Black Hills and Federal for long-range precision work. Requires a 1:8 twist or faster for proper stabilization.