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rifled
In firearms, rifling is the helical groovings that are machined into the internal (bore) surface of a gun's barrel, for the purpose of exerting torque and thus imparting a spin to a projectile around its longitudinal axis during shooting. This spin serves to gyroscopically stabilize the projectile by conservation of angular momentum, improving its aerodynamic stability and accuracy over smoothbore designs.
Rifling is often described by its twist rate, which indicates the distance the rifling takes to complete one full revolution, such as "1 turn in 10 inches" (1:10 inches), or "1 turn in 254 mm" (1:254 mm; sometimes expressed as "1:25.4"cm, or similar, units usually easily inferred.) A shorter distance indicates a "faster" twist, meaning that for a given velocity the projectile will be rotating at a higher spin rate.
The combination of length, weight and shape of a projectile determines the twist rate needed to stabilize it – barrels intended for short, large-diameter projectiles like spherical lead balls require a very low twist rate, such as 1 turn in 48 inches (122 cm). Barrels intended for long, small-diameter bullets, such as the ultra-low-drag, 80-grain 0.223 inch bullets (5.2 g, 5.56 mm), use twist rates of 1 turn in 8 inches (20 cm) or faster.In some cases, rifling will have changing twist rates that increase down the length of the barrel, called a gain twist or progressive twist; a twist rate that decreases from breech to muzzle is undesirable, since it cannot reliably stabilize the bullet as it travels down the bore.Extremely long projectiles, such as flechettes, require impractically high twist-rates to be gyroscopically stabilized, and are often stabilized aerodynamically instead. Such aerodynamically stabilized projectiles may be fired from a smoothbore barrel without a reduction in accuracy.
i have a 1993 870 express magnum with wood furniture 2 round extension and 20 inch 2 3/4 and 3 inch chamber fully rifled barrel for sale, also has the flexitab lifter assembly installed,has the fiber optic sights on it the only problem with it is the finish on it! Like new barrel! Beautiful wood...
Not much more to say than the title. I got them with some 2-3/4, turns out none of my shotguns take 3 in so I figured I’d pass em onto a good home. I’ll include a random Win Super X 3in 1-7/8 shot round I found in my safe. Willing to trade for 2-3/4 slugs (rifled, smooth, or sabot), buckshot...
I'm looking to buy a 20ga bolt action or single shot rifled bore sabot slug gun with a scope or capable of accepting a scope. If you have one you want to sell for a reasonable amount, please text or call Preston at 76o-35two-24one3. I live in SW Boise.
I have here a Remington 870 Express manufactured in December 1993 with a few upgrades.
It came stock with a metal trigger housing, non mim extractor, and rifled 20” barrel.
in the last year it has been upgraded with metal truglow sights, red high visibility metal magazine follower, and a...
Been posting about this on cast boolits because it's kind of a specialty forum, but I figured I would post it here too.
I'm going to start loading bore diameter 12 GA slugs for a rifled bore slug gun. Many others have done this before me but not recently from what I can see. The general idea is...
$15 /box. Factory new. Can possibly meet in Tigard, Beaverton, or Hillsboro areas. Have other varieties of 12 Ga shells I could part with, but most are in storage. Photos of boxes below show their velocities and have a trajectory graph.
Let me know if there are specific types 12 Ga shells...
For trade my Henry H015-12S. Never fired, brand new.
Purchased this gun for slugs but decided on a different plan so it’s got to go for room in my safe.
Rifled 24” barrel, 3” chamber, single shot with ejector and fully ambidextrous controls. Oil finished black walnut with blue steel...
I was fooling around the other day with a Remington Slugger round. I shoot 20 ga. slugs, and depending on what they hit they can come apart and fragment & lose energy. Sometimes that's ok. But I bored out a 5/8 oz. slug and lightly pressed in a .357 Hornady 140 gr. XTP. That 5/8 slug is now...
I had an idea pop into my head this morning.
What would be the result of doing this?
Take a sub caliber projectile that has external "rifling" protruding from the projectile.
Start that projectile into a sabot that has matching internal rifling, such that the projectile is at the "muzzle"...
Federal 00 Buck and Rifled Slugs. In sealed packs containing 10 boxes of 5 rounds each.
2 packs of 00 Buck $65 each, both for $120
2 packs of slugs $65 each both for $120
All for $240
Trade for 30-30 Win.
Qty 1 Box (5 rounds) of Federal Hi-Power 2-3/4" 20 gauge, 5/8oz Rifled Slug shotgun shells.
Old ammo, but always kept in cool and dry storage.
One box isn't much, but hey, it's something :).
$5 or free if you're a NWFA supporting member.
I have 7, 5 round boxs of Speer LE Lawman 12 ga 2 3/4 in 1300 fps slugs. Am asking $14 for each 5 round box.
I am traveling to Vancouver on Friday if that helps. Am not interested in trades at this time.
Respectfully,
Scott
RLTW
Wtt trade for .22,12 gauge buckshot, 9mm, 30.06,7.62x39 or .380 personal defense. Meet in North Seattle ftf.
1 25 round box 12 gauge steel
32 rds. .44 mag wadcutters
10 rds. Super X 12 gauge
15 rds. Federal 12 guage.0
No longer have a 20 gauge, so need to let these go. Six boxes of 5 rounds of Hornady SST slugs (30 rnds).
$75.00 cash sale at a mutually agreed upon location that works for us.