What is a shotgun twist barrel?

What is a shotgun twist barrel?

Damascus or “Damascus twist” barrels are older shotgun barrels that typically were made before 1900. Iron and steel ribbons were twisted and welded together. Damascus barrels are weaker than modern barrels and are not designed for the high gas pressures created by modern ammunition.

Can you switch barrels on a shotgun?

If you bought a “standard” shotgun set up for bird hunting and want to use the same shotgun for home defense, you can easily swap out to your shorter home defense barrel when you return from your hunting trip. Make sure you get a barrel made for your particular shotgun.

How long does a shotgun barrel last?

They don’t wear out as quick as rifle barrels, but every 10,000-15,000 rounds it’s time for a new one. The older I get, the less I care about your feelings….

What’s the barrel twist rate on an AR 15?

The most common barrel twist rates for modern rifles are ratios of 1:7, 1:8 and 1:9. Today the most common rates of rifling in AR-15s are 1:7, 1:8 and 1:9. When Eugene Stoner designed the M16 he originally made things much slower—1 complete turn every 14 inches, with four grooves, to be precise.

How does the weight of a bullet affect the barrel twist rate?

Bullet weight and length factor into the performance of a projectile leaving a gun barrel with a specific twist rate. Industrywide shorthand, expressed as 1:7, 1:8, etc., describes gun-barrel rifling rate.

Can a rifle barrel impart a spin to a projectile?

A barrel of circular bore cross-section is not capable of imparting a spin to a projectile, so a rifled barrel has a non-circular cross-section.

What’s the best twist rate for a rifle?

Heavier bullets perform best from barrels rifled at 1:7. Those 75-grain loads and up are very comfortable at this rate. Too much rotation on a light (shorter) bullet and it can suffer out-of-control “overspin” downrange. Those longer heavyweights require more “twist” to initiate the motion and remain stable at distance.