Preferably with out looking it up. What is meant when I say that is an "Over Bore" and what factors contribute to that condition.......?
Preferably with out looking it up. What is meant when I say that is an "Over Bore" and what factors contribute to that condition.......?
It refers to loading a shell with more powder than is needed to try and get more velocity
I don't have a clear definition.....and I didn't look that up.Quote:
Originally Posted by Sourdough
Quote:
Originally Posted by welderguy
Your very close, your not wrong, but there is more to it than that.
Un-related question (Bonus question). What is a quarter Bore.......?
A person who still has a chance of becoming interesting unlike the Over Bore who'll bore anyone to death? :innocent:Quote:
Originally Posted by Sourdough
Quote:
Originally Posted by BENESSE
Good thing you got legs........:):):)
If I remember right it's also not being able to releas all the pressure or something to that effect but I'm not 100 percent sure if that's right. So I didn't add that to my original answerQuote:
Originally Posted by Sourdough
It is having more powder in the load than can be burned in the barrel before the bullet exits the muzzle.
The case of the 7.62 Russian being shot in a carbine is classic. The load is normal for the rifle but "overbore" for the carbine, creating a massive fireball, muzzle flash and loud report due to the powder burning outside the confides of the barrel. Same for the 5.56 out of the M4 instead of the longer M16 barrel the cartridge was designed for.
The trick is to choose the appropriate powder and just enough of if to completely burn in the specific barrel, giving one top velocity.
almost all our modern rifles are "overbore" with our preference for 20"-24" barrels. Most specs rate velocity and gague performance in a 26" barrel.
This is why you lose velocity when you cut barrel length and finally reach the point where a 16" .300 mag gives less power than a 24" 30-30.
Inversley underbore is a condition such as using a 30" barrel on a .22lr. That cartridge develops all the available power in the first 13" of barrel and everything else is friction slowing the bullet before it leaves the barrel.
Now you are thoroughly bored to the point of being overbored.
kyratshooter, I would say you hit all of the points, well done.
That's must be why I can't get a short barrel version for my 7 mag.
It was explained to me that Mag loads use a slow burning powder to push the bullet to max speeds, so a shorter barrel would cut down on that velocity.
That sound about right?
I'm not overbored but you just tied a knot in my brain. :)Quote:
Originally Posted by kyratshooter
Show Off:tongue_smilie: I knew what it was but couldnt explain it like you did ThanksQuote:
Originally Posted by kyratshooter
Comes from 30 years of school teaching. Ask me what time it is and I'll give you the history of the watch and how to make three different versions. My daughter used to claim I was going to make her brain pop!Quote:
Originally Posted by welderguy
Yes H63, if you cut a 7mag down to 18" you might as well be shooting a 7x57, a 7-30 or .284. And either one would last longer. Rifles that are designed overbore, or any magnum for that matter, tend to have short barrel life.
That happens a lot when New York folk try to communicate with us backward KY hill folk.Quote:
Originally Posted by BENESSE
Well now I know who to PM when I need an answer :innocent: LOLQuote:
Originally Posted by kyratshooter
We are so backward, that we seem forward only to ourselves.Quote:
Originally Posted by kyratshooter
Poking fun at New Yorkers has been a big part of my humor life for the past several years. My wife's family was from Binghamton, NY. Half of them moved to KY for jobs. The other half scattered from NY to AZ.
My SIL had been here 25 years and was always talking about "In NY we had better this, that or the other". I think I was the first person that had ever looked at her and said; "Why arn't you still there?"
Her husband, from Connecticut, immidiately replied "Taxes, taxes and stupid gun laws!"
My wife had spent her early years in Texas, her teen years in NY and her adult life in KY. I always told her she was the only woman I ever met that could shoot a long rifle like a KY pioneer, cooked like a Texan and talked like a yankee.
You folks arn't all bad, I have proof. The best wife I ever married was from NY.
Then there's hope for the rest of us, KRS.
I am a transplant though so the roots don't run deep enough to take anything New York related too personally.
So.....what was the purpose of the pop quiz?
That train has left the station long time ago.
But I still got a ticket. (sniff)
You can use that ticket on any train. Or you can put it in your scrap book to remind you of a journey you never took.
There are a lot of journeys I've never taken. Lot's of women I've never dated, too.
Dr. Phil's show is always looking for new stories.
:laugh:This is why I always read page 2. Better, funnier tangents than page 1. :):laugh:Quote:
Originally Posted by BENESSE
Sourdough was confused and overly bored!Quote:
Originally Posted by Rick
By knowing the answer, or comming close, several of us earned an "attaboy" and everyone now knows what the term overbore means in the shooting sports. This is information us old geezers use to win drinks down at the shooting club after the powder burners have been put away. Ya gotta know these things or they take away cool points and no one says "Ask him, he knows everything". Then we would lose status as the old wise ones.
That's probably the reason they don't respect the elderly in this nation any more, no one remembers what overbore or freebore or copper preasure units are.
(No, freebore is not a song Lynard Skynard sings)
I've started taking notes.
I know what a bore is!!! :)
If you mention my name I'm going to be ticked!
. . . . :cool2:
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