## What is the best twist rate for 22LR?

99% of 22LR bullet weights are between 32-42gr. Keep it simple and stick with 1:16 twist.

**What twist rate do I need?**

Generally, fast twist barrels are used for longer bullets while slower twist barrels are used for shorter bullets. If a bullet has a twist recommendation of 1:10”, it will be stable when fired from any rifle having a 1:10” or faster. So a 1:9” would work fine, but a 1:11” may not.

### Is a higher twist rate more accurate?

A slower rate may produce slightly less pressure and deliver slightly better accuracy when paired with lighter projectiles in each caliber. These slower twist rates are also generally sufficient to stabilize heavier projectiles, particularly when targets are within practical hunting range.

**Does twist rate affect terminal performance?**

Well-Known Member. IMO, the rate of spin alone given an un-damaged or weakened jacket would have little difference in terminal effect in game. Differences in terminal ballistics can be caused by twist rate when it effects the bullets jacket integrity and the RPM’s approach or exceed the “blow-up” threshold.

## What is the best twist rate for a rifle?

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 grain bullet is best for 1 in 7 twist?**

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 barrel length for a 308?

Our experience has shown that for a . 308 caliber tactical rifle with the overall rifle weight and shooting distances mentioned earlier, a barrel of 24-27″ is optimum in one of the fairly heavy contours we discussed. Closer ranges or other considerations might dictate a shorter barrel.

**Does twist rate affect velocity?**

After all the smoke cleared, we found that muzzle velocity correlates to twist rate at the rate of approximately 1.33 fps per inch of twist. In other words, your velocity is reduced by about 5 fps if you go from a 1:12” twist to a 1:8” twist.

## How does barrel length affect twist rate?

Barrel Length Doesn’t Change Rifling Twist Rate If the rifling grooves make a complete revolution in 9 linear inches, it is a 1:9” twist whether the actual barrel is 9 inches long, 30 inches long or just 3 inches long. A 3-inch barrel with 1:14” twist spins its bullets the same as if it were 14, 24 or 48 inches long.

**What grain bullet is best for a 1 in 7 twist?**

### Can 1/7 Twist shoot 55gr?

The quicker 1 in 7 twist might shoot the 55 grain loadings such as the M193 very well or even shoot lighter weight bullets than that.

**What’s the best twist for A.22 caliber?**

Put that same twist in a .22-250 barrel, with 500 fps of additional velocity, and lots of thin-jacketed bullets will gy- rate themselves into flecks of lead and copper. A one-in-9-inch twist is a good choice for all-around shooting with a .223.

## How to calculate the stability of a barrel twist?

Barrel Twist How many “inches per turn” is your rate of rifling twist. This number is used along with other inputs to determine the stability and related trajectory metrics. Typical value for this input is between 1:7″ and 1:13″. [?] Air Temperature The atmospheric temperature.

**What are the twist rates for a bullet?**

The twist rates are from one turn in 8 inches to one turn in 16 inches in one half-inch increments. These rates will cover 95% of the commonly used twists. The values under the heading “Expected `MOA’ Accuracy” are just that.

### What’s the twist rate on a Marlin 22 Hornet?

Twist Rates by Cartridge/Manufacturer Cartridge Twist Rate Manufacturer 219 Zipper 1 in 14″ Marlin 336 22 CCM 1 in 14″ Cooper 22 Hornet 1 in 10″ MOA 22 Hornet 1 in 12″ Thompson/Center, current