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AYDT???? (Read 4724 times)
e15cap
Ex Member
AYDT????
Jan 10
th
, 2008 at 10:15pm
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Looked at an Aydt today that is marked 7.7mm which coverts over to .303". What size bullet is correct for this gun? All help is apreciated.
Thanx Roger
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fallingblock
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th
, 2004
Re: AYDT????
Reply #1 -
Jan 10
th
, 2008 at 10:25pm
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You will need to chamber cast as well as check the bore as the 8.15 bores are all over the place.
Cheers,
fallingblock
Cheers,
Laurie
ASSRA Secretary & Archivist
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tim_s
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th
, 2006
Re: AYDT????
Reply #2 -
Jan 11
th
, 2008 at 11:52am
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I'd suspect that you'll end up closer to .310-.312. Buffalo arms will supply you with an RWS type German stop ring bullet to start out. They can be used for assembled rounds or breech seated. They're not bad.
“ I don’t have to be faster than the bear, I just have to be faster than you”
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jfeldman
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th
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Re: AYDT????
Reply #3 -
Jan 12
th
, 2008 at 11:28pm
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Hi Roger
My 8.15 X 46R is marked 7.6M/M and the barrel slugs at .316
I know of some that measure .323 ..... so you just have to slug that bore.
Regards, Joe
P.S See you at the .22R shoot?
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jeffer1942
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st
, 2004
Re: AYDT????
Reply #4 -
Jan 13
th
, 2008 at 9:11am
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Just to add to the discussion. My 8.15x46 is also marked 7.6mm and slugs out at .310. Slugging the barrel is the only way t make sure.
Jeff
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e15cap
Ex Member
Re: AYDT????
Reply #5 -
Jan 13
th
, 2008 at 9:29am
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Joe and all, thanx for the replies. This is Bob R's gun and will try to slug it this week. Roger
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MartiniBelgian
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th
, 2004
Re: AYDT????
Reply #6 -
Jan 13
th
, 2008 at 10:55am
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'scuse me, but aren't you gents forgetting that the indications back when on German (and other) rifles always gave land diameter of the barrel, not groove diameter...
WWW
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Fred Boulton
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th
, 2007
Re: AYDT????
Reply #7 -
Jan 13
th
, 2008 at 2:53pm
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Martinbelgium is correct: not just German practice but generally in the 19th century. So .303" is the land dia of a Lee-Enfield and the bore is typically 312/314".
According to my own bible on German Schutzen rifles, (Altescheibenwaffen), the groove diameter of an 8.15 x 46R was .316" when new, but it was standard practice to "refresh" the barrels after a few years. I believe that H&N in Germany still make bullets in a variety of diameters up to and including .323".
Slug it.
Fred.
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waterman
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th
, 2004
Re: AYDT????
Reply #8 -
Jan 13
th
, 2008 at 9:22pm
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MB has it right, as usual. My Haenel Original System Aydt is marked 7.7mm and has a .317 groove diameter.
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