Originally by drawing a cutting tool through the bore that cut one groove at a time. Now it may be done with a rifling button (made of VERY hard metal) that is pulled through the barrel, cutting all the grooves in one pass. Barrels can also be hammer forged- a rod with all of the grooves on it is placed in a heated barrel, and the barrel hammered to shrink it onto the rod- which, when the barrel cools, is removed.
If taken care of, the rifle will outlast a couple of owners eaisly.
Yes.
The Brunswick rifle was made with a raised belt on the bullet- the raised belt fitted into two grooves in the barrel. See the link below for more information.
You can contact Ruger's customer service to find out.
Pretty much, yes. You should be able to shoot regular ammunition through it although without rifleing, the bullet will just rattle down the bore and won't be stabilized. Accuracy would be terrible.
Depending upon many conditions -weather, type of projectile, condition of rifle bore, type of rifle, etc. - combat accuracy can be achieved out to around 600 yards/580 meters. Target accuracy with a highly accurate rifle can be stretched out to 1000 yards/ 990 meters.
Your question is a bit ambiguous, so I'll go with the notion you're referring to the longest confirmed kill by a sniper. That was achieved with a rifle chambered in .338 Lapua Magnum.
It makes the bullet spin when it is fired- much the same way a football spins in flight. The helps the bullet travel in a straight line, improving the accuracy of the gun.
The American 180 was a submachinegun in caliber .22LR that fired 1200 rounds per minute. If not the highest, has to be in the top 10.
These fine winchester model 55,s which were made between 1924-1932 are currently valued at between 750-900 dollars for a rifle with 50-60%original finish and a good bore which you describe.The value could go up if the remaining finish is in a higher percentage,for the wood and metal on your model 55.
While it seems the same caliber and the round is "almost" the same size, the answer is no. Not safely. The .22lr round does not extend long enough for the round to enter the throat of the barrel. When fired there is a split second where the round has to "find the hole" This can lead to excessive breech pressure and excessive leading at the throat and begining of the rifleing. The other drawback is the extractor will not reliably remove the spent cartridge.
This is a rare little gun, It was produced from 1906 to 1908.There were about 1500 of these made and were offered only with octogan barrell. The value is pretty much up in the air,,if the rifleing is in good condition,if the furniture is in good shape and if no rust or pitting.I think the last time i looked the one i have is worth about 350.00.But i have never seen one on auctionarms or gunbroker so just name your price is the way i see it.