This Remington Model 700/M40 Marine Corps sniper rifle is in the Vietnam issue configuration. The rifle has a tapered, medium-heavy barrel, clip-slotted receiver and oil finished walnut stock. The stock has an integral cheekpiece and aluminum checkered buttplate embossed with the Remington logo. The rifle has an aluminum hinged floor plate and trigger guard with a black annodized finish. The barrel and receiver have a parkerized finish. The receiver is fitted with a blued Redfield base and rings. The rifle has a Redfield 3-9x "Accu-Range" telescopic sight with black annodized tube. The scope has the unique internal range scale and double stadia wires in the top of the eyepiece with conventional, fine wire crosshairs. The left side of the barrel is stamped with a Remington production code "UDS" over the caliber "7.62 NATO" just ahead of the receiver. The opposite side of the barrel is stamped with the Remington "R.E.P." proof and two sub-inspection marks. The left side of the receiver is roll-stamped: "U.S./6257284" on the chamber followed by "REMINGTON/MODEL 700" opposite the ejection port. The bolt is blued and has the serial number, "6257284", electro-penciled on the underside of the handle. The partial serial number "7284" is vibra-penciled on the left side of the scope base and scope tube. The telescopic sight has the Redfield name and address roll-stamped on the eyepiece. The USMC purchased 995 sniper rifles from 1966-1977. Peter Senich's "The One Round War" page 259-262 discusses 7-digit serial numbered rifles. USMC M40 sniper rifles with 7-digit serial numbers are part of the product improvement series also known as “transition rifles”. USMC sniper rifle with serial number 6257338 (54 numbers off this one) was provided to the Army for testing (page 260). Rifle number 6257227 is pictured and stated to have the same characteristics as a USMC issued sniper rifle. 7-digit rifles are also documented to have shipped to Sionics to be outfitted with suppressors. Others within this serial number range were given as trophies at the Camp Perry matches and sold by the CMP. Serial number 6257207 was awarded at Camp Perry in 1981 and two others in 1979 and 1980 (page 261-262). 7-digit serial number rifles were purchased on the USMC M40 contract. Remington changed the serial number sequence to 625XXX after the 1968 Gun Control Act. The Marines purchased 137 rifles between 1969-1971. Observed M40 7-digit serial numbers are between 6257207-6257333.