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What is a Ringed Bore?
- Thread starter dalpra
- Start date
Art Eatman
Staff in Memoriam
Commonly, a ring in the bore of any rifle or shotgun occurs from its being fired with some sort of grunge in the barrel. Not enough for a bulge or a blowup, but a visible ring is left somewhere along the length.
Depending on the location, some velocity loss and/or loss of accuracy is possible, if not probable.
FWIW, Art
Depending on the location, some velocity loss and/or loss of accuracy is possible, if not probable.
FWIW, Art
Badger Arms
New member
I've seen this on shotguns and rifles but never on a rimfire. There are ringed chambers where the breech end of the chamber has a ring swaged into it so that as the gun fires, the brass expands but is forced to contract as it blows back. This is a way for a blowback firearm to perform well despite a lighter mass in the slide/bolt area. It essentially expands and resizes itself on blowing back.
To my knowledge, the Seecamp is an example of just such a gun. Again, this is probably not what you are talking about. This type of chamber is somewhat sensative to ammo type. For instance, you can't shoot aluminum or steel cases and any lubricant on the case is bound to increase slide velocity significantly.
------------------
God made us in his own image.
Thomas Jefferson made us free.
John Browning made us equal.
Without Browning, we might not know about the other two...
To my knowledge, the Seecamp is an example of just such a gun. Again, this is probably not what you are talking about. This type of chamber is somewhat sensative to ammo type. For instance, you can't shoot aluminum or steel cases and any lubricant on the case is bound to increase slide velocity significantly.
------------------
God made us in his own image.
Thomas Jefferson made us free.
John Browning made us equal.
Without Browning, we might not know about the other two...
Juan Hunt Greer
New member
Actually, it is not rare in 22 rimfire, though not as common as it once was, due to the current extreme rarity of squibs in current commercial ammo. in 22, it comes when a bullet fais to exit the bore and another is fired behind it. the second bullet doesn't (usually) actually touch the first as the air between them is violently compessed and starts the first moving again. Meanwhile, the peak in air pressure actually swells the barrel (usually only a matter of thousandths of an inch) BETWEEN the two bullets. Sometimes the accuracy goes completely to he!!, sometimes only halfway. Usually, it is possible to feel and/or see a smooth swelling on the outside of the barrel at the point.
crankshaft
paranoia is just fine when they actually are out to get You!
[This message has been edited by Juan Hunt Greer (edited September 11, 2000).]
crankshaft
paranoia is just fine when they actually are out to get You!
[This message has been edited by Juan Hunt Greer (edited September 11, 2000).]