2 groove or 4 groove better?


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Fatelvis
December 31, 2002, 07:48 PM
Is there a difference in 03-A3s, being 2 groove or 4 groove? I just bought a Rem 1943 A3 in excellent shape, and just found out it has a 2 groove bbl. Should I be depressed?

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cheygriz
December 31, 2002, 08:25 PM
Conventional wisdom sez that 4 groove is not just better, but MUCH better!

An awful lot of experts were really upset during WW2 when the 2 groove springfiled rifles shot just as well as the 4 groovers.

And no, don't be depressed, and don't waste your money having it rebarrelled.

Ledbetter
December 31, 2002, 09:29 PM
Go to

www.jouster.com

to find out more about your rifle.

Art Eatman
December 31, 2002, 09:32 PM
One of those "Ripley's Believe It Or Not" deals, but cheygriz is absolutely right! :D

Art

Mike Irwin
December 31, 2002, 10:00 PM
I've got a 2 groove and it's frighteningly accurate.

Gewehr98
December 31, 2002, 10:07 PM
And I ain't EVER gonna change it for a 4-groove barrel. It shoots too darned well!:D

Fatelvis
January 1, 2003, 02:15 AM
Ledbetter, you got me. :D You caught me asking a question on more than one sight, damn! You must be into this stuff as much as me, to catch that one!! ;)

BADSBSNF81
January 1, 2003, 02:31 AM
Doesn't matter. Either one will shoot to government specs of the time frame. Been shooting a 2 groove 03A3 of 43 vintage for almost 20 yrs. With handloads it'll do 1.5 MOA at 100m.

Fatelvis
January 1, 2003, 12:47 PM
Bad, If you dont mind me asking: What is your load of choice, for your rifle?

BADSBSNF81
January 2, 2003, 02:49 AM
It had a preference for 180 and 220 grain bullets on top of IMR 4831. IIRC my loads were 5-10% below the max of the time (early 80's reloading books).

Khornet
January 2, 2003, 07:45 AM
will shoot sub-MOA at 100 yd with the original barrel. I use a Hornady 150 gr flat-base spire point bullet, CCI large rifle primer, and 4064, 50 or 51 grains. I use a seating depth gauge to put the bullet about .008" off the lands, and sort, neck-turn, primer pocket uniform, flash hole ream my brass. Interestingly, full-length sized brass shoots almost as well as neck-sized.

I think the 2-groove barrel cleans up easier, too. I have shot groups as tight as 0.38" at 100 yd.

fallingblock
January 2, 2003, 09:49 PM
between the 4-groove Remington and 2-groove Smith Corona I owned as a teenager. I'd say just shoot and enjoy:)

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