Sage-Tips

What is the best rate of twist for 308?

308 Win. is most commonly barreled with a 1:12 twist. This is probably because use of long, heavy bullets was not envisioned in shorter actions. However, in . 30 caliber, even a 1:12 twist is versatile and can usually stabilize 190-grain match bullets and 200-grain hunting bullets.

What grain bullet is best for 1 in 10 twist?

Senior Member. The 1:10 twist should handle up to 200 grain bullets no problem if wanted.

What grain bullet is best for 1 in 11 twist?

I like 165 grain accubonds. They have a good balance between penetration and speed. For 308 win. 1:11 twist will handle up to about 200 grains depending on the style of bullet.

What grain bullet should you shoot with a 1 7 twist?

If you are shooting long range, or want more penetration, you want a heavier bullet in the AR, such as a 62- or (preferably) a 77-grain. While 62-grain bullets prefer a rate of twist around 1:8, 77-grain bullets weights favor a 1:7 twist rate.

What is the best bullet weight for a 308?

The 110 and 125 grain bullets make the . 308 a useful round for varmints. Velocities at the muzzle can exceed 3,200 fps, providing devastating performance on pests or predators.

What is the best rifle barrel twist?

Most modern AR-15 barrels will come in three twist rates: 1:9, 1:8, and 1:7. The 1:9 barrel is best for stabilizing lighter and mid-weight bullets between 45 and 77 grains. The 1:8 twist barrel is the most versatile of the bunch, the perfect option for16-inch carbine AR-15 (the most common configuration on the market.)

What is the best twist rate for a 30 06?

For instance, most . 30-06 barrels have a 10-inch or 12-inch twist. These are adequate to stabilize bullets as light (short) as 100 grains and as heavy (long) as 200 grains, sometimes 220 grains.

What is a twist in a rifle barrel?

Twist rate refers to the rate of spin in the rifle barrel, and is represented in inches per turn. A barrel that is a 1:10” twist means that the rifling will spin the bullet one revolution in 10 inches. The lower the number of the twist, the faster the twist rate or the faster the bullet will spin.

Is a 1/7 twist rate good?

Standard rifles used by the United States military, typically have a twist rate of 1:7. This is a pretty aggressive rate, but it works well to stabilize the heavier projectiles used in modern combat zones.

Which twist rate is best?

The best barrel twist rate depends on what type of bullet you are shooting. A fast twist rate such as a 1:7” twist barrel will work better with long-range modern bullets where as a shorter twist such as 1:10” or 1:11” twist barrel will work better with shorter bullets.

What is the best twist rate for 150 gr 308 bullets?

For example, a 1:10 twist is good for 308 rounds up to 220 grs. Up to would indicate that a 150 gr bullet should work fine in a barrel with that twist. Is that not so or it that too fast. Would a twist too fast slow the bullet’s exit speed? Re: Best twist rate for 150 gr .308 bullets?

What is the best grain for a 308 bullet?

For your stated purposes, there really isn’t much reason to go with a heavy bullet from a .308 case, especially if you intend to use bonded bullets. Your best performance will come from bullets in the 150 to 165 grain range. Thanks for replies…very helpful.

What is a good twist range for a rifle?

OK, The twist ranges on the accompanying charts in this thread indicate that a twist is good for rounds “up to” a certain rate. For example, a 1:10 twist is good for 308 rounds up to 220 grs. Up to would indicate that a 150 gr bullet should work fine in a barrel with that twist. Is that not so or it that too fast.

Is a 308 a good round to start out with?

In either case the 308 is a great round to start off with as their are alot of quality rounds out their in factory form if you don’t reload , it has a very long barrel life , very easy to load for , don’t recoil much and on and on. I’m resurrecting this old thread to ask for some advice on twist rate for .308 rifle.