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 Post subject: Which Slugs for Which Barrel?
PostPosted: Mon Sep 25, 2006 11:22 am 
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Location: Decatur, AL
Rifled Slugs (or Foster)
-Designed for smootbore barrels (use a Cylinder choke or the most 'open' choke you can)
-Can be used in Rifled barrels, but creates severe fouling and less accurate than Sabots
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Brenneke Type Slugs- Designed for smoothbore barrels.
Brenneke slugs are good choice for smoothbore shooters.

With Foster slugs or Brennekes you can expect 1 ½-inch groups at 50 yards, possibly 4- to 5-inch groups at 100 yards.
Slugs can be shot through screw-in choke tubes. Choose Cylinder if possible

Sabot Slugs
-Designed for Rifled barrels or smoothbores with Rifled Chokes.
-Sabot type shotgun slugs were marketed in the U.S. starting in about 1985. When used with a rifled slug barrel, they offer vastly improved accuracy compared to traditional shotgun slugs.

Brenneke Type Slugs- Designed for smootbore barrels.
The Brenneke slug is similar in appearance to a rifled Foster slug. The Brenneke slug was developed by Wilhelm Brenneke in 1898. The original Brenneke slug is a solid lead slug with fins cast onto the outside, much like a rifled Foster slug. There's a plastic, felt or cellulose fiber wad attached to the base that remains attached after firing. This wad serves both as a gas seal and as a form of drag stabilization, much like the mass-forward design of the Foster slug. The fins serve to provide spin after the slug exits the barrel, and also provide an easily deformed surface to allow the slug to pass through choked shotgun barrels.
the Brenneke slug is solid, rather than hollow like the Foster slug, the Brenneke will generally deform less on impact and provide deeper penetration (see terminal ballistics). The sharp shoulder and flat front of the Brenneke mean that its external ballistics restrict it to short range use, as it does not hold velocity well. The Brenneke slug in 12 gauge is well suited for large and dangerous game at close ranges, and deer sized game or antipersonnel use out to about 100 yards (meters). Brenneke slugs are somewhat more accurate than the Foster slugs, but are usually more expensive.

A Foster slug, invented by Karl Foster in 1931, is a type of shotgun slug designed to be fired through a smoothbore shotgun barrel. The defining characteristic of the Foster slug is the deep hollow in the rear, which places the center of mass very near the tip of the slug, much like a shuttlecock. If the slug begins to tumble in flight, the drag will tend to push the slug back into straight flight. This gives the Foster slug stability and allows for accurate shooting out to ranges of about 75 yards (about 70 meters). Most Foster slugs also have "rifling", which consists of thin fins on the outside of the slug that are used to impart spin as the slug travels through the air. Once the slug is spinning, it becomes as stable as a bullet fired from a rifle.

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