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Shallow Rifling


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#1 Rim Noob

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Posted 18 February 2014 - 09:48 AM

A few days ago I was researching something and came across a thread talking about shallow rifling... As best as I can recall a fella had bought a gun and liked it very much but when he inspected the bore-which perfect and mirror bright-he noticed that the rifling was shallow.  His question to he forum was whether or not this mattered greatly?  Among the answers was one that said (I'm doing this from memory) that if the gun was being shot with high velocity ammo(.22) then the shallow rifling was not only not a problem but was actually an advantage. This comment got no push back and seemed to have been accepted without demur. 

 

Anybody know if this is, in fact, the case?



#2 jaia

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Posted 18 February 2014 - 09:10 PM

Marlin liked it, remember "microgroove rifling"?


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#3 Rim Noob

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Posted 19 February 2014 - 03:21 AM

Marlin liked it, remember "microgroove rifling"?

No, I don't know that term.  What's that?



#4 dbp1stltartillery

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Posted 19 February 2014 - 05:14 AM

No, I don't know that term.  What's that?

Noob, it means that there are many lands and grooves(up to 16) instead of the usual 4 or 6..They are also cut shallower..Marlin has been famous for their "micro grooved" barrels for a long time..I have had several and they have been super accurate..I do know that the number of grooves has not proven to be the "holy grail" for accuracy..The 03-A3 Springfield at one time was produced with only 2 grooves for manufacturing expediency and was considered just as accurate as the 4 groove. Dave


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#5 jaia

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Posted 19 February 2014 - 06:45 AM

Good article

 

http://www.leverguns...ove-barrels.htm


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#6 Rim Noob

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Posted 19 February 2014 - 08:34 AM

Yeah, great article.  Thanks.



#7 Carl

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Posted 19 February 2014 - 01:02 PM

When I bought my Remington 513-T It looked like there was no rifling in the barrel. Run a brush or jag through it and it would twist, so I knew it was there. Then when I shot it, no problem... the bullet must be spinning or it wouldn't shoot that good. As many of you know that have read my posts in the past, this gun was NOS when I bought it a good 20 years after manufacturing ended on this model... package deal on 2-513-Ts and a 521-T, all NOS.


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#8 dbp1stltartillery

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Posted 20 February 2014 - 05:13 AM

Great article jaia..Worthy of bookmarking for sure..Once again our great members help us all to learn and become better informed shooters..Thanks so much...Dave :tumbs:


The national budget must be reduced; the arrogance of the authorities must be moderated and controlled. Payments to foreign governments must be reduced, if the nation doesn't want to go bankrupt. People must again learn to work ,instead of living on public assistance.

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CICERO~~~~~~~~~~~~~~~~~~~55 BC!!


ONCE THE PUBLIC REALIZES THEY CAN VOTE THEMSELVES MONEY FROM THE PUBLIC TREASURY THE REPUBLIC IS LOST..Ben Franklin and others.




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