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Are 40X and M700 barrels threaded the same? Handled a 40X today that Im pretty sure had the barrel replaced with a 700.
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yes they are the same dims
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The 40X barrels only have the caliber stamped on them and not the Remington address, as far as I know.
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as far as markings the one I just pulled out of the barrel pile is marked 22-250 oz and on the other side has the rep proof and a v in a triangle and a 2. That being said other than the contour the shank, thread and cb is the same.....Russ
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Campfire 'Bwana
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I've never seen a Remington custom shop rifle with the barrel stamped with anything but the cartridge that it was chambered for.
JEff
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I've never seen a Remington custom shop rifle with the barrel stamped with anything but the cartridge that it was chambered for.
JEff Look on the other side, there will be some proof marks stamped there.
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My older .22-250 Remington 40X barrel has the cartridge designation followed by a stylized stamped "W" or "H" (?) and the letters "LZ", on the other side a "REP" cartouch a "T" in a triangle and the numeral 4. This rifle was 1960 - 70's vintage, at the time I was told by Ikey Starks Remington was using Hart barrels.That barrel screws right into a new 2011 Remington 700 Short action.
Last edited by WranglerJohn; 07/25/11.
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I believe any 721, 722, 600, 7, and 700 will screw on. You need to check headspace and sight orientation. Butch
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Butch,
Recently, a gunsmith acquaintance told me that Remington does indeed use Hart barrels on their 40-x's. He said that it is indicated by the stamp that looks somewhat like a heart - A "V" with a sort of "w" between the top two points of the "V". (Best I can describe it...) I have a factory 40-x so marked in .30-.338, and also one in 6.5x55 so marked; as is my .222 Rem.
Can you confirm or refute the above? Thanks...
GH
"As you walk thru life, don't be surprised that there are fewer people that you encounter seeking truth than those seeking confirmation of what they already believe!"
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Campfire 'Bwana
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John Lacy wrote that the heart shaped stamp on Remington barrels was a gallery or inspector stamp, not an indication that the barrels were Hart brand.
JEff
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The upside down heart is a gallery stamp showing it has been inspected. It is on the RH side of the barrel close to the recoil lug. I know that Mike was close to the Harts and introduced them to button rifling. Hart does not make CM barrels. Early on Remington had some stainless barrels. They probably quit around 1970 or so. They were iron coated to accept bluing. I cannot say whether Hart made any of their barrels. Shilen has made some barrels for them recently, I think their 17 cal. They advertise that Shilen provides the barrel blanks. Wranglerjohn, The triangle stamp on the RH side of the barrel is a magnaflux stamp. The custom shop did button rifle some of their barrels. Actually the 40X models later on were really no different than a 700, just marked differently. Butch
Last edited by butchlambert1; 07/25/11.
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Thanks for the answer.... It would have been too simple to have indicated Hart barrels.... However, that doesn't explain why some have them and some don't... That stamp is on the left side of my rifles immeadiately following the caliber stamp, two are on factory SS bbls and one is on a blue barrel. The rifles with the stamp, do not have barrel manfucturing codes on them... What gives with that? My 40X bbl in 6mm Rem is marked with the twist (1~12) and the manfucturing code (BQ) indicating Jan '78 production... but does NOT have the heart shaped stamp... Hmmmm... A mystery, no? GH
"As you walk thru life, don't be surprised that there are fewer people that you encounter seeking truth than those seeking confirmation of what they already believe!"
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Campfire 'Bwana
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Thanks for the answer.... It would have been too simple to have indicated Hart barrels.... However, that doesn't explain why some have them and some don't... That stamp is on the left side of my rifles immeadiately following the caliber stamp, two are on factory SS bbls and one is on a blue barrel. The rifles with the stamp, do not have barrel manfucturing codes on them... What gives with that? My 40X bbl in 6mm Rem is marked with the twist (1~12) and the manfucturing code (BQ) indicating Jan '78 production... but does NOT have the heart shaped stamp... Hmmmm... A mystery, no? GH I've got a 70's vintage 40XB in .244 Rem. It's a 12 twist, of course. Your 6mm is a 12 twist and marked as such? I thought they went to 9 twist when they reincarnated the .244 as the 6mm. Was that a special order? DF
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DF, I purchased the barrel used... Have not installed it as yet... The standard 1~9 twist was dictated for most Remington rifles. The 40-X could be ordered in 1~9, 1~10, or 1~12. I presume that whomever ordered it to begin with wanted a varmint rifle... GH
"As you walk thru life, don't be surprised that there are fewer people that you encounter seeking truth than those seeking confirmation of what they already believe!"
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Campfire 'Bwana
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They're good barrels. My .244 40 XB came from the factory, shooting three, 5 shot groups into an average of .38" at a hundred. That was with 60 gr. Sierra bullets and 3031 powder.
DF
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It was my impression that some of the stamps were assigned to an individual as his/her personal stamp, so that QC could be tracked in the event of a problem after the rifle left the factory. If so, the heart shaped stamp would only be present on the rifles handled by the individual to whom it was assigned.
JEff
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Jeff, After having worked a factory for 37 years, and much of it in the Quality Control dept; Your theory makes perfect sense. Perhaps a call to Remington's Custom Shop is in order... GH
"As you walk thru life, don't be surprised that there are fewer people that you encounter seeking truth than those seeking confirmation of what they already believe!"
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