While 100 percent contact is not always possible, I always strive to have at least 95 percent contact between the internal collar and the bolt lugs before moving forward with the build. The internal recoil lug collar in the action should ideally have 100 percent surface contact with the recoil lugs on the bolt itself. The bolt face, the recoil lugs and the face of the action should be exactly 90 degrees to the bore. There are many fine details that can make or break the accuracy of a bolt-action rifle, and these details are sorted out in a process called "blueprinting." A true match rifle should have the raceway of the bolt perfectly in line with the bore. While factory Remington actions are fine for the casual whitetail hunter, the Marines use them purely as a starting point. Remington has long been known for their lightweight, strong and cost-efficient Model 700. Years of building M40 clones for the civilian market has given me a great respect for the level of skill and the attention to detail of the Marine gunsmiths and armorers who build these weapons in Quantico, Va. It is worth noting that since the introduction of the M40A1 variant, the rifle has been accurized, fit and assembled by Marines, for Marines. However, this contract has not quieted talk of replacing the platform.
Unertl 10x usmc sniper scope upgrade#
Late last year, Remington was awarded a contract to provide a folding chassis style stock that would subsequently upgrade the A5 variant to an M40A6. In 2009, the M40A5 made its debut featuring a suppressor-ready Schneider barrel with Surefire muzzle brake, Badger Ordnance M5 detachable magazine and a forward accessory rail for mounting an AN/PVS22 night optic.
The M40A3 has seen combat during Operation Enduring Freedom (OEF), Operation Iraqi Freedom (OIF1) and OIF2 as well as other Global War on Terror (GWOT) related hot spots around the globe. The new model utilized the McMillan A4 tactical stock with an adjustable cheek piece, a Schneider barrel, improved bedding, flush cup sling points, and, eventually in 2007, the MST-100 scope was finally replaced with a Schmidt and Bender PM II LP 3-12x50. During the late '90s, a new variant was on the rise: the M40A3. Having seen action in Lebanon, Grenada, Desert Storm and Somalia, the proven M40A1 was aging. Wooden stocks were susceptible to warping, and the reticle in their Redfield 3-9 Power Accurange scope could melt in high temperatures. Early M40 sniper rifles encountered problems during the Vietnam War.
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