I certainly don't mean either that you can only shoot 50 rounds of lead and then must clean. Definatley worth it if you're shooting long distance rifle matches. Not worth it in a handgun. It certainly should not decrease the value of ones gun, so if the extra bucks in not a problem. Thank you! Great forum I learn more every day. Personally, I could care less.
The grooves most commonly used in modern rifling have fairly sharp edges. Polygonal barrels tend to have longer service lives because the reduction of the sharp edges of the land reduces erosion of the barrel. Supporters of polygonal rifling also claim higher velocities and greater accuracy. Better accuracy? Not in long range rifles. Almost all premium rifle barrels are rifled.
There's a reason for this. The rifles were also put to accuracy tests by taking ten shots each at targets at various ranges. The following table and diagram illustrate clearly the results that were obtained during the trial figures reproduced from W. As you can see from the figures and the bullet holes above, the Whitworth rifle clearly outperformed the Enfield , which was the premier rifle of its day. Until the Whitworth came out, the best recorded deviation from the center for any rifle at yard ranges was 27 inches 2.
The Whitworth rifle at yards had a mean deviation of only 4. At yards range, the Enfield could not even hit the target square which was 14x14 feet in size. The committee, while acknowledging the Whitworth's superiority in accuracy, also noted that the barrel tended to foul up easily due to the quality of black powder used in those days.
They also expressed doubts about how the hexagonal bullets could be manufactured in bulk and had concerns about whether these rifles could be manufactured with equal mechanical perfection. At that time, the British tactics relied on mass-rapid fire and less on accuracy and the Whitworth rifle also cost 4 times more than the Enfield to manufacture. As a result, the Whitworth rifle was rejected by the British Government as non-suitable for their order of battle.
There was a trial held in England in at the National Rifle Association, but since Whitworth was not a gunmaker of experience, his rifle had ignition problems due to faulty percussion-lock design. On the other hand, rival gunmakers learned from his methods and produced weapons of similar caliber, using the same rifling, but better firing mechanisms.
The Henry rifle which won the competition had many of the features pioneered by the Whitworth rifle. One more problem with the Whitworth was that it was a muzzle-loader and hence shared the defects of all muzzle-loaders i. However, this did not spell the doom of the Whitworth rifle. There were other people who were interested in accurate weapons -- quite a few Whitworth rifles were purchased by the Confederate Army of America and were used in the US Civil War with deadly accuracy.
The Confederates were fighting against an Union force that was vastly larger and had better artillery. To counter the artillery of the Union army, the Confederates created a unit called the Whitworth Sharpshooters which was designed to harass the artillery batteries. In fact, this unit was the birth of the first dedicated modern sniper unit and the Whitworth is one of the original sniper rifles!
Traditional rifling is still used for many sharpshooter weapons, but polygonal rifling has the advantage of higher velocities, less wear and tear than conventional rifling and less lead and copper buildup in the barrel, which makes cleaning easier.
Due to the success of the polygonal bore, many manufacturers still manufacture weapons using this technique. While the polygonal bore idea fell out of fashion between and , the Germans brought the concept back with the MG machine gun in WW-II.
Posted by The Editor at PM. Labels: polygonal bore , rifle , Rifling , sniper , whitworth rifle. Unknown May 13, at AM. Newer Post Older Post Home. But what is paradox rifling, and which type of firearm and ammunition would be compatible with such a barrel?
Paradox rifling can be seen in a barrel, spreader, or choke tube that features rifling only at the end of the tube near the muzzle. This term emerged from 19 th -century customization of a double-barreled shotgun when one fired shells and the other bullets.
Learn more about this curious adaptation and its application today for hunters and shooters. Before Lt. The entourage harvested small game like rabbits and fowl using a shotgun but would switch to rifles for larger or further away targets. In , Holland and Holland, English firearm manufacturers, started offering the double-barreled paradox gun after purchasing the patent rights.
Since smoothbore was the norm back then, this shotgun with a rifled barrel was contradictory to the status quo. From hence, hunters to India and Africa could carry one firearm that uses two different projectiles. The shooter loaded the correct cartridge depending on the target and proceeded to shoot with conservative accuracy for both shells and slugs.
By , Holland and Holland had built over guns in various gauges or bore sizes. These included eight, ten, twelve, sixteen, and twenty-gauge. The paradox gun also raised a legal question since any firearm with an over. A ruling by the Alcohol, Tobacco, and Firearms Bureau of that time, or BATFE, was obtained to state that since the gun fired shot-shells with a modification to shoot slugs, it was still a shotgun.
You can find paradox rifling already installed in single-shot break-open and bolt action shotguns. These firearms are remarkably accurate. For bullets, saboted slugs specially designed for a rifled barrel can shoot at par with a typical rifle.
I'm curious as to the real differences too. Frank Green said:. Click to expand Dec 17, 0 30 wenatchee, WA. I am also doing one in AI that should be done within the month so i will let you guys know how they shoot and if i can tell any differences between them and traditional rifled barrels.
Also, I think we need to distinguish some terminology here Polygonal barrels- Glock uses this. The entire bore is shaped like a polygon. Polygonal riflling- Schneider barrels P5 profile is like this.
Conventional circular bore but the rifling lands are sloped like a polygon 5R- Canted land rifling, common proflie done by Obermeyer, Bartlein, Kreiger, and others. All different That's interesting. My understanding was that they used a Schneider P5 rifled barrel and that in testing, it outlasted and outperformed its competition by a wide margin.
That's kind of my overall question Schneider barrels seem to be used by a few serious shooters like David Tubb, but not many It makes me wonder why they are or are not more popular Sep 21, 0 64 roch,ny. People generally are not comfortable with change. However why fix what isnt broke. TorF Sergeant Full Member. Oct 9, 60 Norway. Polygonal barrels are more accurate than conventional barrels after you have put rounds through them. Feb 23, 32 0 EU.
I have a polygon LW barrel on a , shoots great and cleans well. I wonder if the new LaRue barrels will be polygonal like the Lothar Walther barrels he used? Nov 27, 5, 2, 59 Ingleside, Tx. I run a Schneider P5 twist on my. If the info can be believed, P5 barrels tend to shoot a bit faster than conventional barrels. I also have a LW with conventional rifling, shoots very well and cleans up very easy.
I used to have a factory Rem 5R hammer forged stainless barrel, it shot very well and cleaned up very easy. It wasn't as nice as my after market barrels, but it was the easiest to clean factory barrel I have ever had. It didn't seem to copper at all. Downzero - Full Member. Oct 15, 2, 58 Las Cruces, NM. TorF said:. ChrisF Sergeant Full Member.
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