What is the best twist rate for a 7mm mag?
Pac-Nor order form recommends the 5 groove with either a twist rate of 9″ or 10″ for the 7mm Rem Mag.
What is a 1/7 twist barrel good for?
The 1:7 barrel, found in the M4, M16A4, Mk12 SPR and HK416, can stabilize up to a 90-grain bullet, and handles 70- to 77-grain projectiles across a wide spectrum of velocities.
What twist rate does the military use?
For those who are curious, Guns&Ammo notes that the military uses the 1:7 twist rate. So, why do you want a faster twist rate or a slower twist rate? The answer is simple: bullet weight. There are a wide variety of bullet weights available, anywhere between 30 and 80 grains, in the extremes of the 5.56 mm NATO/.
What is the difference between 55 grain and 62 grain?
The steel core, 62 gr stuff will penetrate better but. the 55 should fragment more. For short range, anti personnel use as in home defense hollow point is probably a better choice.
What is the best barrel length for 7mm Rem Mag?
If you can manage the length I would put a 30″ barrel on it. If not then put at least a 26″ barrel.
What is the twist rate of a Remington 700 7mm mag?
1/9 to 1/10″
| 7mm Remington Magnum | |
|---|---|
| Case length | 2.5 in (64 mm) |
| Overall length | 3.29 in (84 mm) |
| Case capacity | 82.0 gr H2O (5.31 cm3) |
| Rifling twist | 1/9 to 1/10″ |
What is a 1/8 twist?
Twist rate refers to the rate of spin in the rifle barrel, and is represented in inches per turn. For example, a 1:8 twist will spin the bullet one revolution in 8 inches, whereas a 1:10” twist will spin a bullet one revolution in 10 inches.
Is a 1/7 twist barrel good?
A common slow twist rate, for example, could be notated as 1:12. A twist rate of 1:12 means that the bullet does one 360 degree rotation per 12 inches of barrel. A 1:7 twist rate indicates that the bullet will undergo a rotation once every seven inches, which, as you might imagine, is a much faster spin.
What is a 1/8 twist barrel?
A barrel that is a 1:10” twist means that the rifling will spin the bullet one revolution in 10 inches. For example, a 1:8 twist will spin the bullet one revolution in 8 inches, whereas a 1:10” twist will spin a bullet one revolution in 10 inches.
What is the best rifle barrel twist?
The 1 in 12 inch twist is ideal for best accuracy with varmint weight bullets (70-85 grains) in a high velocity .24 (6mm) caliber rifle. The heaviest spitzer bullet that a .244 with a 1 in 12 inch twist barrel could stabilize was 90 grains.
What is best barrel twist?
What is the best barrel twist The heaviest most likely be 62. A 1-in-9 twist should do OK on 62gr pills and still not over-spin the 55gr to 50gr pills. If you want to shoot bullets as light as 40gr, you might need to drop back to a 1-in-10 twist to not over-spin the lighter bullets.
What is a barrel twist?
” Barrel twist refers to the rifling in the barrel of modern rifles making a full 360-degree rotation in a given length of inches. For example, a 1:7 twist means the rifling makes one complete rotation for every seven inches of barrel.
What is rifle twist?
Twist as discussed here, refers to the rifling in the barrel of modern rifles making a full 360 degree turn in a given length of inches. As an example, a 1 in 7 Twist means the rifling makes one 360 degree turn for every seven inches of barrel.