In any case, if you donât know yours, go and check out the details given by the manufacturer. exact pistol firing a 275 gr bullet with 40 gr of powder will give you 1804 fps
fired in this example). impulse.
Like uncorking champaign, when a bullet clears the muzzle, gas
to the same brake in 6mm. Super Slow Motion Firing Sequences
Usually, gun owners want to calculate the recoil so that they can reduce recoil shotgun slugs. of the powder burn gasses inside the barrel. 2g = 64.35.
Adding an 8oz (half pound) muzzle brake to a 6.2 pound 308 rifle reduces
of total Gun
fully loaded Glock 21 (full size 45 ACP at 2.47lb) will cut recoil energy by 21%
escape through the brake's bore hole. Jet Effect Momentum Formula
Even, some webs are already presenting some sorts of software to calculate them.
More info. powder at 1185 fps, no muzzle brake, hits you with 0.17 lb of recoil
of gun powder (and therefore gas) used in pistols. A heavier gun will give you slightly higher muzzle velocity. I estimate its barrel ports
Less
jet effect. pound. This hot gas accelerating out of the muzzle imparts an equal and opposite force
I added a pair of these
and 50% propels the bullet. actual test”, Hatcher’s Notebook p269. This can be caused by two
with 40 gr powder, 1804 fps, .308 Win is the default gun, just refresh your browser to load the
the Alamo Four Star (now called
secure a gun is when it is fired, the higher the peak recoil energy. can reduce recoil significantly. When a muzzle brake is used Jet Effect Momentum = Powder Weight * 1.7 * Muzzle
gas from the muzzle or the "jet effect". This force is what a muzzle brake acts
This chart is from the
The method is based on the simple physical principle of conservation of momentum.
A pistol suppressor also reduces muzzle flip by making the weapon longer
due to the added suppressor weight. during bullet flight and splash. By Major Rob Robinette
Note how much faster the gasses exiting the muzzle are
1.7 * bullet muzzle velocity
PrecisionRifleBlog.com muzzle brake tests
= BulletWeight * MuzzleVelocity
cal round, 655 gr bullet, 248 gr powder at 3029 fps, with the muzzle
Recoil Energy Due to Gas = ft-lbs
R (ft lbs)=RW*VG2*32.174
with empty magazine (full size 9mm at 1.55lb) will cut recoil energy by 30% due
Even after the bullet clears the
2700 fps generates 26.6 foot-pounds of recoil energy. gas and jet effect recoil. %
Muzzle Velocity, Bullet Energy is equal to: Bullet Weight *
noise, less recoil, less muzzle flip and a sighting system that can take
theoretically a muzzle brake can be more than 100% efficient if it can send
They want to do so to get the maximum efficiency from their shooting.
of the powder burn gasses inside the barrel.
powder at 1185 fps, no muzzle brake, hits you with 0.17 lb of recoil
All other things being equal, heavier pistol bullets strike
reduce bullet velocity and recoil from short barreled rifles and pistols because
The US Army's M4 rifle using M193 ball ammunition comes in at 6.5
This powder is burned
Typically, the more powerful the gun, the more effective a muzzle brake
calculated by multiplying force by the distance over which that force is
Note how the bullet is clear of the barrel and the slide has moved rearward
barrel gas continues to push the bullet for a few inches downrange. recoil calculator above: 158 gr bullet, 13 gr of powder, 0.74 lb gun weight and
Jet Effect Momentum is approximately equal to:
This tool is one of my favorites to take care of the recoil. Before going to the calculation part, you have to consider some facts. recoil energy.
Spreadsheet or the
Only needed for Bullet Spin Rate calculation
Major Robinette was a Battalion Marksmanship Champion, Squadron Rifle Team Captain
and Range Officer. brake), Glock 17 full size 9mm pistol: 2 lbs (fully loaded), 115 gr bullet, 6
Who is an animal and nature lover. %
Nolichucky Guns. Gas Momentum = lbs*fps
With
MuzzleVelocity * 720 / BarrelTwistRate, rps Bullet Revolutions Per Second = MuzzleVelocity * 12 / BarrelTwistRate
I am listing down some of my favorites. Gun recoil momentum and energy are generated in three ways: 1. * (1 – Muzzle Brake Efficiency)^1/(e^.5), Gun Recoil Momentum = lbs*fps = BulletMomentum + GasMomentum + JetEffectMomentum, also equal to GunWeight * GunVelocity, Gun Recoil Impulse = lbs-sec = GunMomentum / g [Note: g = 32.17405 fps], Gun Recoil Velocity = fps = GunMomentum / GunWeight, Loss of Muzzle Velocity to Gun Weight = % = BulletWeight / (BulletWeight + GunWeight). [Deer Color Myth Explained]. hole.
Recoil Energy
After bullet exit the
XLR Industries M-LOC Steel Chassis Weights to my Tikka T3x TAC A1 and 6.5mm Ruger Precision Rifle. Nowadays, It has become an addictive sport. muzzle brake. of total recoil energy. high due to more recoil & more muzzle jump.
the muzzle is called the "jet effect" and accounts for approximately
inches
rifle hunting. A heavier gun will give you slightly higher muzzle velocity. to the added weight. produce force opposite the recoil. The top blue
Muzzle brakes are designed to reduce recoil force by redirecting exit gas and
effectiveness.
I use
efficiency smokeless gun powders.
formula is: loss of velocity = 200 / (8*7000 + 200) = 0.4% loss, so 99.6% of the
1115 fps (same load as the Airlight above), S&W Model 500 8 inch 50S&W Revolver: 4.46 lbs, 700 gr bullet, 27.5 gr powder,
of the bullet in the barrel. Gun Recoil Calculation Spreadsheet
light, the additional weight of a suppressor can greatly reduce their recoil. Any exit gas that turns more than 90 degrees from the bore axis (rearward) will actually
so pistol suppressors have less gas to work with and only reduce jet effect
use. accurate estimate of muzzle gas velocity is bullet muzzle velocity * 1.7. Recoil Energy
The momentum of the bullet + gas + jet effect is
S&W Model 686 Plus 357 Mag Revolver: 2.3 lbs, 158 gr bullet, 13 gr powder,
In this graph
Professional shooters have their in-person method to do that.
times faster than bullet muzzle velocity.
A spontaneous number of shooters come to the hospital every week with severe injuries in their shoulders made by their shotguns. However, owning one can be dangerous for us, if we do not have clear ideas about what we are dealing with.
%
factors: more of the powder is burned in the barrel generating more energy and
impulse.
Or if you are a deer farmer, what will you do if a doe in your farm has rejected her newborn... Can Deer See Color?
[ Up ] [ M16 4-Way ] [ Gun Recoil ] [ Long Range MRAD Shooting ] [ QuickLOAD ] [ 300BLK ] [ Leupold RX2800 ] [ Major Harry Bolster ]. I
All other things being equal, a faster burning powder will generate a "sharper"
fired in this example). feet-per-second (multiply meters-per-second
Recoil Energy
gun. Nolichucky Guns. and 50% propels the bullet. If muzzle velocity
The more
% of muzzle velocity lost if gun is fired while
An equal and opposite reaction to the gas's acceleration is transferred to the
inches
A light 6.2 pound 308 rifle firing a 168 grain bullet at
A light 6.2 pound 308 rifle firing a 168 grain bullet at
= BulletWeight * MuzzleVelocity
This is why all 50BMG rifles have large muzzle brakes. 2. Glock 17 full size 9mm pistol: 2 lbs (fully loaded), 115 gr bullet, 6
cut recoil energy by 18% due solely to the added weight. 2g = 64.35
22LR rifle: 6 lbs, 40 gr bullet, 2.5 gr powder, 1185 fps (0% muzzle
Adding a pair at 15 total ounces will reduce the Tikka and 6.5 Creedmoor
of muzzle velocity with a recoil energy of "just" 28 ft-lbs. 1.7 * bullet muzzle velocity. Slow Mo Guys "Bullet Racing" YouTube video. That gives us a very stout 18.6 ft-lbs of recoil energy from this "Airlight" pistol.
90% muzzle brake, US Army M4 5.56 Rifle & M193 ball ammo: 6.5 lbs, 56gr bullet, 27.5 gr
The added weight of a suppressor also reduces recoil.
g = acceleration of gravity feet-per-second per-second = 32.17405,
The "jet
7.62mm muzzle brake was only 1 to 3% less effective in reducing recoil compared
A firm, strong grip on the pistol will cut
When I fire my 20 lb Serbu BFG-50 50BMG rifle with a typical 50
enough exit gas rearward to make up for the gas that escapes through the bore
Ruger Precision Rifle's recoil energy by 8%. double the velocity the momentum doubles but the energy quadruples. Since muzzle brakes are designed to reduce jet effect recoil, pistol muzzle brakes are less effective due to the small amount
energy. so pistol suppressors have less gas to work with and only reduce jet effect
Lightweight bullets generate less
The same suppressor installed on a Glock 17
Bullet Spin Rate = rpm Bullet Revolutions Per Minute =
recoil I was surprised to find most of the mathematical theory was from the
force jumps to 655 pounds as exit gas blows out of the muzzle. to the added weight.
[Complete Care Guide]. Since recoil momentum
I love to share my hunting experience in this blog.
7000 grains in a pound so for an 8 pound rifle firing a 200 grain bullet the
Rob also spent 10 years as a federal law enforcement
Barret Model 82A1
less recoil) which is still a serious kick in the shoulder. solely
redirected exit gas. Less rifle movement makes it easier to keep the target in sight
Fifteen foot pounds is probably about the maximum recoil energy most shooters feel reasonably comfortable with, particularly at the trap or skeet range, where most serious shotgun practice occurs. The weight of a SilencerCO Osprey 45 ACP suppressor (0.65lb) installed on a
Spreadsheet, XLR Industries M-LOC Steel Chassis Weights, PrecisionRifleBlog.com muzzle brake tests, Slow Mo Guys "Bullet Racing" YouTube video. the extreme, gun weight has little effect on muzzle velocity.
I added a pair of these
rifle hunting. This acceleration of gas out of
less than 1/10th of an inch. ElapsedTime
That gives us a very stout 18.6 ft-lbs of recoil energy from this "Airlight" pistol. Consider this thought experiment: The gun and bullet both weigh 1
* (1 – Muzzle Brake Efficiency)^1/(e^.5)
which spreads its weight over a greater length increasing its moment of inertia
advantage it. when the bullet exits the muzzle. PickHunting also participates in affiliate programs with Bluehost, Clickbank, CJ, ShareASale, and other sites. theoretically a muzzle brake can be more than 100% efficient if it can send
It’s also called Free Recoil. MPA Cowl Induction Brake) weighs in at 6 oz and would reduce recoil energy
momentum of 14.3 and 222 ft-lbs of energy, A 100 grain bullet with a muzzle velocity of 2000 fps has a
Jet Effect Momentum is approximately equal to:
The recoil energy is calculated as: Energy = 1/2 m gun v gun2 Many of us want to own a high damaging shotgun. the correct caliber muzzle brake isn't very important. PrecisionRifleBlog.com muzzle brake test article with annotations added by
Again, you can also reduce the recoil with an attached gas chamber. propellant is used to push the bullet and muzzle velocity doubles. But their added weight
PrecisionRifleBlog.com muzzle brake test article with annotations added by
muzzle brake since it doesn't have one.
%
You can see in
= PowderWeight * MuzzleVelocity
Plug in these numbers in the
momentum of 28.6 and 888 ft-lbs of energy. This acceleration out of the muzzle causes jet effect recoil. Consider this thought experiment: The gun and bullet both weigh 1
Less jet effect recoil means a muzzle brake or
Any exit gas that turns more than 90 degrees from the bore axis (rearward) will actually
a lot anyway but these added weights appreciably reduce felt recoil and rifle
A note about momentum versus energy: Momentum is
.
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