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Muzzle brake: Quiz

  
  

Question 1: They are also common on small-bore varmint rifles, where reducing the muzzle rise allows the shooter to see the bullet impact through a ________.
ReticleTelescopic sightIron sightReflex sight

Question 2: Porting is most commonly used on ________, where recoil is most significant and makes rapid firing difficult.
FirearmUnited StatesCombat shotgunShotgun

Question 3: What does the following picture show?

  Flash suppressor of the Sig 550 rifle. Flash suppressors are often designed to work as simple muzzle brakes.
  Removable muzzle brake and thread cap for a custom .358-378 RG hunting rifle.
  Springfield-Armory Custom XD-40 V-10, showing the ported barrel and slide.
  Removable muzzle brake and thread cap for a custom .358-378 RG hunting rifle.

Question 4: What does the following picture show?

  Prominent muzzle brake of the PGM Hecate II.
  Flash suppressor of the Sig 550 rifle. Flash suppressors are often designed to work as simple muzzle brakes.
  The muzzle brake of an M198 howitzer venting propellant gas sideways.
  The muzzle brake of a 30 mm Mauser autocannon.

Question 5: What does the following picture show?

  The muzzle brake of a 30 mm Mauser autocannon.
  The muzzle brake of an M198 howitzer venting propellant gas sideways.
  Prominent muzzle brake of the PGM Hecate II.
  Removable muzzle brake and thread cap for a custom .358-378 RG hunting rifle.

Question 6: Muzzle brakes were ruled "legal" by the ATF in the United States a short time after the now defunct ________ went into effect in 1994.
CIFTAViolent Crime Control and Law Enforcement ActFederal Assault Weapons BanNational Firearms Act

Question 7: What does the following picture show?

  Prominent muzzle brake of the PGM Hecate II.
  Springfield-Armory Custom XD-40 V-10, showing the ported barrel and slide.
  The muzzle brake of the 105 mm gun on an AMX 10 RC fighting vehicle.
  Illustration of forces in muzzle rise. Projectile and propellant gases act on barrel along barrel centerline A. Forces are resisted by shooter contact with gun at grips and stock B. Height difference between barrel centerline and average point of contact is height C. Forces A and B operating over moment arm / height C create torque or moment D, which rotates the firearm's muzzle up as illustrated at E.

Question 8: Linear compensators and ________ do not have the disadvantages of a redirected muzzle blast; they actually reduce the blast by venting high pressure gas forward at reduced velocity.
Heckler & Koch MP5SuppressorUnited States.22 Long Rifle

Question 9: What does the following picture show?

  Flash suppressor of the Sig 550 rifle. Flash suppressors are often designed to work as simple muzzle brakes.
  The muzzle brake of the 105 mm gun on an AMX 10 RC fighting vehicle.
  The muzzle brake of a 30 mm Mauser autocannon.
  Removable muzzle brake and thread cap for a custom .358-378 RG hunting rifle.

Question 10: Slowing of the gases is the method used on ________ and linear compensators[11].
.22 Long RifleUnited StatesHeckler & Koch MP5Suppressor
















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