Slows down gases.
No
"Regular .22 rimfire ammo IS .22 LR.
A weapon that has one shotgun barrel and one rifle barrel either in an over/under or side by side configuration.
Is it a Model 4 or a Model 6 or a rolling block? Try posting over at http://www.remingtonsociety.com/forums/
Keep the over all leingth of the firearm greater than 26" and you can have whatever barrel leingth you desire.
The bore is rifled so as to put a spin on the bullet. This spinning gives a greater accuracy to the bullet, especially over that of a smooth bore.
The Winchester model 67, manufactured between 1937 and 1963 is a single-shot, bolt-action, rimfire .22 caliber rifle. The standard model bares a twenty-seven-inch tapered "sporter" barrel. Winchester also offered a "boys" model, with a twenty-five-inch barrel, for youngsters. The model 67 is capable of firing any .22 short, .22 long, or .22 long rifle cartridge. Approximately 383,000 of these popular rifles were produced, with only the later models (after the early 1940's) having serial numbers. The longer barrel of the standard model was a regular feature of most rimfire rifles until the 1960's. The longer barrel length was thought to be advantageous for at least three reasons. First of all, the longer sighting plane between the rear sights and the front sights aided in aiming. Secondly, the longer barrel reduces noise considerable, nearly muting the sound of standard velocity ammunition. Thirdly, before the advent of today's advanced external ballistics, it was commonly believed that a very long barrel was necessary to achieve game-killing velocities.
Have it checked over by a gun smith.
That is the Winchester Single Shot, otherwise known as the Model 1885. There were so many different variations of this rifle that each and every one encoutered really needs an individual, hands-on appraisal. For instance, the rifle was chambered for no less than seven different .22 rimfire cartridges, with over 100 total chamberings known for this rifle. More special order features were available with this model than any other Winchester. Barrel lengths from 15" to over 30". There are high-wall, low-wall, thick-side, thin-side, etc. Value could easily range into the thousands. sales@countrygunsmith.net
Requires professional appraisl. Could be 100-10000 USD
The muzzle 9front end) is rounded over- that is the crown of the muzzle. Some target rifles have flat muzzles.
if you dont know that then you should not own it.... the barrel should break over and you load it there