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  • Post category:Muzzle Brakes
  • Post last modified:April 19, 2023
  • Post published:April 21, 2021

The .300 Win Mag is commonly used in the competitions of long-range bench rest shooting, also accepted by law enforcement and some specific branches of the U.S. Military sharpshooters.

Best Muzzle Brake for 300 Win Mag - Editor's Choice

Muzzle brakes for 300 win mag redirect pressure and gases to the sides and upward, being good at diminishing felt recoil.

Why do we need a muzzle brake for 300 win mag?

300 Winchester features recoil about 30.5 ft-lbs. Muzzle brakes are efficient at mitigating recoil, upward and side-to-side motion while shooting; they allow faster sight realignment on the target and enhance accuracy.

Best Muzzle Brake for 300 Win Mag | Muzzle Brake for 300 Win Mag Reviews

SureFire 3-Prong Muzzle Brake for 300 Win MagSureFireBUY
Precision Armament M11 Severe-Duty Muzzle Brake for 300 Win MagPrecision ArmamentBUY
VG6 Precision Lambda Muzzle Brake for 300 Win MagVG6 PrecisionBUY
Ultradyne APOLLO Muzzle Brake for 300 Win MagUltradyneBUY
Vais - Muzzle Brake for 300 Win MagVaisBUY

#1 SureFire 3-Prong Muzzle Brake for 300 Win Mag

SureFire 3-Prong Muzzle Brake for 300 Win Mag


Caliber: 7.62x51mm NATO; 5.56x45mm NATO
Threads per Inch: 5/8×24; M15x; 1/2×28; M14x1
Gun Make: Armalite; Heckler & Koch; Steyr
Gun Model: AR-10, DPMS LR-308; Heckler & Koch G36; Steyr AUG; M4, M16; M14; AK-74; M240
Length: 2.84 in, 2.67 in; 2.75 in; 3 in; 3.3 in; 2.79 in; 3.05 in

The SureFire developed a patent-pending Flash Hiders design with three prongs to diminish muzzle flash. The used materials (precision machined stainless steel bar stock) with a black Ionbond DLC coating ensure convenient protection under severe environmental conditions. This flash hider with a hole on it for pin and welding is outfitted with a rear seal, which reduces potential carbon buildup in the indexing system and makes suppressor removal easier after the long shooting. While installation of many 7.62 mm rifles with 5/8-24 muzzle threads any modification isn’t necessary. The device includes the Spacer Kit (Shim), Rock-sett, and tread-lock installation instructions. These flash muzzles are good for low or limited-light conditions in team environments.

  • Aesthetically pleasing: mean look;
  • Reliable functionality;
  • No pinging;
  • US mill-certified heat-treated stainless steel;
  • Excellent suppressor adapter;
  • Ideal thread interface due to the high-precision single-point cut threads;
  • Mounts up readily and clocked well;
  • Easy and fast attachment to any of the Surefire Socom suppressors.
  • California’s Proposition 65;
  • Unclear directions for suppressor and shimming tightening: it seems a little confusing.

#2 Precision Armament M11 Severe-Duty Muzzle Brake for 300 Win Mag

Precision Armament M11 Severe-Duty Muzzle Brake for 300 Win Mag


Caliber: .338 Caliber; .264 Winchester Magnum, 6.5mm Grendel; 7.62mm
Threads per Inch: 5/8×24
Length: 2.675 in
Height: 1.188 in
Weight: 5.6 oz
Diameter: 0.85 in

The Precision Armament combines perfect concentricity (due to the class-3 threads machined and bore aperture) and a decreasing baffle thickness that allows diminishing bullet flight disturbance. The six models of stainless steel (HRC 26-32, HTSR 416) muzzle brakes are available with DLC matte black or Stainless steel in the white and matte finish. These Muzzle Brakes are outfitted with two compensated front baffles and symmetrical blast ones to redirect the rifles’ gas to the upward and sides, mitigating recoil, muzzle rise, and ground disturbance, improving accuracy. Due to the computer FEA method, these Muzzle Brakes and Compensators have chosen optimal strength, durability, and weight to provide them with impact resistance.

Video review

  • Superb heat and corrosion resistance due to quality material: the precision CNC machined stainless steel;
  • Affordable price;
  • Great machine work and excellent polishing;
  • Tightened down properly per instructions using the shims;
  • Notable recoil mitigation;
  • Keeps barrel down;
  • The top and bottom wrench flats allow convenient mounting and dismounting of this unit.
  • Suitable only for the 6-inch target at a 100 yard;
  • A bit loud: punches in the face while firing.

#3 VG6 Precision Lambda Muzzle Brake for 300 Win Mag

VG6 Precision Lambda Muzzle Brake for 300 Win Mag


Caliber: .30 Caliber, .300 Winchester Magnum
Threads per Inch: 5/8×24
Gun Model: AR-15
Weight: 4.6 oz

VG6 Precision designed two-in-one: Muzzle Brake and Jam Nut to deliver convenient installation without tools. These heat-treated Stainless Steel (17-4ph) Brakes are equipped with an 11-target crown for accuracy and four chambers (in the first one the gas flow is redirected to the left and right of the shooter, the rest three chambers as a buffer direct the gas backward). The whole construction with the jam nut is self-tightened after every shot.

Video review

  • Due to the recoil elimination the shooter stays on the scope and identifies their impacts downrange;
  • Self-tightening design;
  • Used techniques while production: CFD (Computational Fluid Dynamics) and CAE (Computer-Aided Engineering) and CNC machined for better performance;
  • Simple to time the brake without wrenching on it;
  • Adjustability.
  • None yet.

#4 Ultradyne APOLLO Muzzle Brake for 300 Win Mag

Ultradyne UD11190 7.62 APOLLO Muzzle Brake for 300 Win Mag


Сalibers: 300 Win Mag, 300 PRC, 300 Weatherby mag, 300 WSM, 30 Nosler, 308 Norma Magnum, 308 Win, 7.62×51 NATO, 30-06 Springfield, 300 AAC Black Out, 300 Savage, 303 Savage, 30-30 Win

The Apollo LR compensator is good for the long-distances calibers, providing effective shooting and minimization of recoil and muzzle rise. These comps allow the shooters to notice bullet splash at long-range even with magnum calibers. The compensator diverts gases away from the shooters and out of their sightlines. The devices are crafted from Stainless Steel (416) with Ultra Rugged SB Nitride Coating.

Video review

  • Fits most Magnum calibers and stress-free to shoot;
  • Comes with a Shrouded Timing Nut.
  • None yet.

#5 Vais – Muzzle Brake for 300 Win Mag

Vais - Muzzle Brake for 300 Win Mag


Caliber: 300 WM, 30 , 308
Size: .875
Threads: 5/8-32

Special design with horizontal and perpendicular holes to the bore centerline delivers gas and sound dispersion equally to all sides. Numerous expansion chambers, redirecting gases, minimize muzzle rise without muzzle blast increase and provide recoil control. These brakes are crafted from steel with stainless steel with a matte finish and a Parkerized finish.

Video review

  • Made in the USA;
  • Operates with many firearms;
  • The recoil is noticeably less.
  • A bit expensive;
  • Louder than such other devices;
  • Fitting needed.

How to Install 300 Win Mag Muzzle brake

  • Every time before the 300 win mag muzzle brake installation or removal, unload the rifle and keep it empty.
  • According to the instructions, the muzzle brake should be duly orientated: its ports need to be perpendicular to the vertical axis of the rifle.

Muzzle Brake for 308 WM Instal

  • Use properly sized shims to install a muzzle device.
  • Usually, a crush washer makes the muzzle brake timing simpler. A silencer can be attached directly to the muzzle brake if you want.
  • To line up the device correctly, take a size crush washer or shim, consider the barrel face like a clock one, the 300 win mag muzzle device should be aligned with the barrel at 12 o’clock.

Muzzle Brake for 308 WM Instal

  • To provide the necessary timing, install the crush washer or shim and tighten the muzzle brake strongly with your hand to the 10 o’clock position.
  • It’s recommended to secure any muzzle device until it lines with the 12 o’clock point on the barrel, a 3/4 inch open-end, and an AR15 armorer’s wrenches will be appropriate for this. Do the tightening in short increments without over securing the brake and not overpassing the 12 o’clock position.


Should I put a muzzle brake on my 300 win mag?
After putting a muzzle brake on the 300 win mag, it’s more convenient to shoot a rifle and spot hits at distant ranges, providing less felt recoil and upward and side-to-side movement. If you don’t mind an extra noise, the brake on the 300 win mag is worth it, but anyway, use ear protection.
How bad is the recoil on a 300 win mag?
A .300 Winchester has recoil about 30% more than .30-06 Springfield. The .300 Winchester Magnum with an average load delivers nearly 30 foot-pounds of recoil power.
How far can a 300 win mag shoot accurately?
300 Win Mag bullet provides an efficient range of 318 yards (roughly) before the necessity of hold-over for bullet-drop compensation. The maximum productive distance is 1,210 yards (1,110 m) with ammo comprising low-drag projectiles.
Does a muzzle brake affect velocity?
After assembling a muzzle brake on the rifle, it additionally extends the barrel and does not decrease muzzle velocity. Many snipers put muzzle brakes or flash suppressors on the present rifles. The main task of these devices is to improve the overall performance of the weapon: to minimize flash to near zero and recoil, to capture and retard muzzle gases.
Does muzzle brake affect accuracy?
Muzzle brakes don’t impact the rifle accuracy directly. After the bullets have left the barrel, the muzzle brakes allow it to diminish recoil, changing the way the barrel whips, as a result, bullets can move at a different point.
Can a muzzle brake change your point of impact?
Muzzle devices can alter the POI because of the weight loss on the barrel end, and influencing the barrel “harmonics”. A thread protector of the same weight with the muzzle brake can be made and screwed on the barrel end to hit the same POI.


Muzzle brakes allow you not only to keep your shoulder safe, mitigating the felt recoil but also get more rifle control while shooting, enhance accuracy, make fast the follow-up shots and sights realignment on the target. Remember about loud firing sounds and always use ear protection.

Convenient muzzle brake should have suitable size, weight, and construction. For prone shooting, it’s convenient to choose the muzzle brake without bottom ports to minimize the dust cloud. Reliable .300 win mag muzzle brakes will help you to improve overall rifle performance and see notable differences in shot quality and accuracy.

Best Pick:

SureFire 3-Prong Flash Hider with Suppressor Adapter

View on OpticsPlanet

A Mean-looking three-prong muzzle device is equipped with a rear seal, which allows reduction of potential cMuzzle Brake for 300 Win Magarbon buildup in the indexing system and makes suppressor removal easier after the long shooting.

Budget pick:

Precision Armament M11 Severe-Duty Muzzle Brake

View on OpticsPlanet

These Muzzle Brakes are outfitted with two compensated front baffles and symmetrical blast ones to redirect the rifles’ gas to the upward and sides, mitigating recoil, muzzle rise, and ground disturbance, improving accuracy.

Tags: #Best #Muzzle Brake #300 Win Mag #Sale #Cheap #Price #Reviews #Flash Hider #Compensator #Editor’s Choice

Tatiana Kursakova
Tatiana Kursakova
Professional shooter, traveller, survivalist
My love of guns is in my blood, since childhood I have spent hours enjoying the beauty of guns and adored going through their parts.

Tactical accessories are another passion of mine that I could write about endlessly - my house and garage are full of tactical gadgets, luckily my family shares my interests.

I'm infatuated with traveling that's why work at one place with a daily routine and standard schedule is not for me. I prefer copywriting and English tutoring as a freelancer. I live in a male family among constant talks about cars, guns, hunting, fishing, and, of course, dinosaurs 😊.

My husband is an obsessed hunter, and my two sons are fans of «Demolition Ranch» of YouTube blogger Matt Carriker. They are my best consultants about weapon and all-around ammunition topics. All together we share a love for adventures. Every camping or mounting hiking trip is a "small survival", giving irreplaceable experiences. Nothing can be better than the satisfaction of observing wild nature.

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